Search Results

Search found 41520 results on 1661 pages for 'fault tolerant'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 183/1661 | < Previous Page | 179 180 181 182 183 184 185 186 187 188 189 190  | Next Page >

  • sqlservr.exe always reading SBSMonitoring.mdf

    - by Bastien974
    Hi, I'm having an issue with my sqlservr.exe which is always reading the SBSMonitoring.mdf, around 50MB/sec. I saw that in Reliability and Performance mmc. I don't think my hard drive love it... and it slows down my server. We have a SBS 2008. I found nothing about it, help me please :) Thanks.

    Read the article

  • How to connect SAN from CentOS through two iSCSI Targets

    - by garconcn
    I had asked the similar question before. This time I want to use subnet for two iSCSI Targets, hence I start a new question. I have an old Promise VTrak M500i SAN Server. It comes with 2 iSCSI ports. I want to connect to two LUNs on the SAN server through two separate Targets from CentOS 5.7 64bits server. My network setup is as follows: CentOS server: Management network - 192.168.1.1 Storage network 1 - 192.168.5.2 Storage network 2 - 192.168.6.2 Promise SAN server: Management network - 192.168.1.2 iSCSI Port 1 - 192.168.5.1 iSCSI Port 2 - 192.168.6.1 I have two Logical Drives on this SAN and they are mapped as follows: Index Initiator Name LUN Mapping 0 iqn.2011-11:backup (LD0,0) 1 iqn.2011-11:template (LD1,1) Basically, I want the traffic to iqn.2011-11:backup LUN 0 through 192.168.5.1 network the traffic to iqn.2011-11:template LUN 1 through 192.168.6.1 network I don't use MPIO, just want to separate the traffic to avoid traffic jam. How do I achieve this? I am new to SAN stuff, please explain as much detail as you can. Thank you. The following are what I am doing now. After mapping the LUN to my pre-defined Initiators, the CentOS server can discover both Targets. [root@centos ~]# iscsiadm -m discovery -t sendtargets -p 192.168.5.1 192.168.5.1:3260,1 iscsi-1 192.168.6.1:3260,2 iscsi-1 [root@centos ~]# iscsiadm -m discovery -t sendtargets -p 192.168.6.1 192.168.6.1:3260,2 iscsi-1 192.168.5.1:3260,1 iscsi-1 [root@centos ~]# /etc/init.d/iscsi start iscsid is stopped Starting iSCSI daemon: [ OK ] [ OK ] Setting up iSCSI targets: Logging in to [iface: default, target: iscsi-1, portal: 192.168.6.1,3260] Logging in to [iface: default, target: iscsi-1, portal: 192.168.5.1,3260] Login to [iface: default, target: iscsi-1, portal: 192.168.6.1,3260] successful. Login to [iface: default, target: iscsi-1, portal: 192.168.5.1,3260] successful. [ OK ] [root@centos ~]# iscsiadm -m session tcp: [1] 192.168.6.1:3260,2 iscsi-1 tcp: [2] 192.168.5.1:3260,1 iscsi-1 When I check the LUN mapping on the SAN server for the two Logical Drives, both LUNs are connected through Port0-192.168.5.2 with the Initiator defined in CentOS. Assigned Initiator List: Initiator Name Alias IP Address LUN iqn.2011-11.centos centos.mydomain.com Port0-192.168.5.2 0 Initiator Name Alias IP Address LUN iqn.2011-11.centos centos.mydomain.com Port1-192.168.5.2 1 I assume the following is what I want: Initiator Name Alias IP Address LUN iqn.2011-11.backup centos.mydomain.com Port0-192.168.5.2 0 Initiator Name Alias IP Address LUN iqn.2011-11.template centos.mydomain.com Port0-192.168.6.2 1

    Read the article

  • Validating signature trust with gpg?

    - by larsks
    We would like to use gpg signatures to verify some aspects of our system configuration management tools. Additionally, we would like to use a "trust" model where individual sysadmin keys are signed with a master signing key, and then our systems trust that master key (and use the "web of trust" to validate signatures by our sysadmins). This gives us a lot of flexibility, such as the ability to easily revoke the trust on a key when someone leaves, but we've run into a problem. While the gpg command will tell you if a key is untrusted, it doesn't appear to return an exit code indicating this fact. For example: # gpg -v < foo.asc Version: GnuPG v1.4.11 (GNU/Linux) gpg: armor header: gpg: original file name='' this is a test gpg: Signature made Fri 22 Jul 2011 11:34:02 AM EDT using RSA key ID ABCD00B0 gpg: using PGP trust model gpg: Good signature from "Testing Key <[email protected]>" gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. Primary key fingerprint: ABCD 1234 0527 9D0C 3C4A CAFE BABE DEAD BEEF 00B0 gpg: binary signature, digest algorithm SHA1 The part we care about is this: gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. The exit code returned by gpg in this case is 0, despite the trust failure: # echo $? 0 How do we get gpg to fail in the event that something is signed with an untrusted signature? I've seen some suggestions that the gpgv command will return a proper exit code, but unfortunately gpgv doesn't know how to fetch keys from keyservers. I guess we can parse the status output (using --status-fd) from gpg, but is there a better way?

    Read the article

  • Vmware Player 3.0 - cannot ping 32 bits guest from 64 bits (guest or host)

    - by npmj
    I'm stuck with what seems a bug in VmWare Player (build 203739). I'm using W7 Ultimate 64bits as host and have a CentOS 5.4 (64 bits) as a guest and a Windows XP Professional SP3 (32 bits) as another guest. From the 64 bits machines (the host and the linux guest) I cannot ping the windows XP. Off course, I already turned off the windows firewall in the guest and also in the host. The network is pretty basic, I'm using Vmnet8 (NAT), with DHCP and port forwarding (to the windows XP's IP). Everything is working ok, I have internet access from host and from both guests. Port forwarding to the XP guest is working ok too. The only problem is that I cannot access the XP guest through the Vmnet8. I monitored the traffic using wireshark (in the host and in the windows guest). If I try to ping the XP guest from the host, what I see is the ARP request leaving the host, being answered by the guest and, after that, there is no echo request leaving the host. The same occurs if I try to ping the XP from the CentOs guest. From the windows XP guest I can ping both the host and the CentOs guest. From the XP guest I can access the host shares. Obviously, from the host I cannot see the XP shares (as I cannot even ping the guest). I want to maintain this setup (using NAT to share the host's internet connection). Any suggestions?

    Read the article

  • ASP.NET/mono performance on Linux

    - by Quandary
    Anybody knows how asp.net/mono performance is on Linux ? I mean, which server gives you the best performance/delivery time (Apache/Apache2, xsp2, lighthttp, nginx, other) ? Since all asp.net goes via xsp2, I'd say xsp2 would certainly be fastest, but it's probably missing a lot of features, which lighthttp offers (e.g. mod_dosevasive, URL-rewriting, etc.).

    Read the article

  • Install Oracle Drive and TNS for Windows XP?

    - by David.Chu.ca
    I am building a box with Windows XP with some applications. One application requires connection to an Oracle database on remote. I have installed OracleXEClient.exe from Oracle download. The installation does install "Oracle Provider for OLE DB" driver. My problem is that I still cannot make connections to the remote Oracle db. The test I have done is to create a UDL file with Oracle provider OLE DB connection. The error message is: --------------------------- Microsoft Data Link Error --------------------------- Test connection failed because of an error in initializing provider. ORA-12154: TNS:could not resolve the connect identifier specified I think I may miss TNSNAMEC.ora in the box. I can find this file from another box where Oracle connection works fine. I am not sure what package I should install (from Oracle) so that the default TNSNAEMES.ora will be installed with related files and setup path for accessing the TNS file?

    Read the article

  • How to use bzdiff to find difference between 2 bzipped files with diff -I option?

    - by englebip
    I'm trying to do a diff on MySQL dumps (created with mysqldump and piped to bzip2), to see if there are changes between consecutive dumps. The followings are the tails of 2 dumps: tmp1: /*!40101 SET SQL_MODE=@OLD_SQL_MODE */; /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */; /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */; /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */; /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */; /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */; -- Dump completed on 2011-03-11 1:06:50 tmp2: /*!40101 SET SQL_MODE=@OLD_SQL_MODE */; /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */; /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */; /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */; /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */; /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */; -- Dump completed on 2011-03-11 0:40:11 When I bzdiff their bzipped version: $ bzdiff tmp?.bz2 10c10 < -- Dump completed on 2011-03-11 1:06:50 --- > -- Dump completed on 2011-03-11 0:40:11 According to the manual of bzdiff, any option passed on to bzdiff is passed on to diff. I therefore looked at the -I option that allows to define a regexp; lines matching it are ignored in the diff. When I then try: $ bzdiff -I'Dump' tmp1.bz2 tmp2.bz2 I get an empty diff. I would like to match as much as possible of the "Dump completed" line, though, but when I then try: $ bzdiff -I'Dump completed' tmp1.bz2 tmp2.bz2 diff: extra operand `/tmp/bzdiff.miCJEvX9E8' diff: Try `diff --help' for more information. Same thing happens for some variations: $ bzdiff '-IDump completed' tmp1.bz2 tmp2.bz2 $ bzdiff '-I"Dump completed"' tmp1.bz2 tmp2.bz2 $ bzdiff -'"IDump completed"' tmp1.bz2 tmp2.bz2 If I diff the un-bzipped files there is no problem: $diff -I'^[-][-] Dump completed on' tmp1 tmp2 gives also an empty diff. bzdiff is a shell script usually placed in /bin/bzdiff. Essentially, it parses the command options and passes them on to diff as follows: OPTIONS= FILES= for ARG do case "$ARG" in -*) OPTIONS="$OPTIONS $ARG";; *) if test -f "$ARG"; then FILES="$FILES $ARG" else echo "${prog}: $ARG not found or not a regular file" exit 1 fi ;; esac done [...] bzip2 -cdfq "$1" | $comp $OPTIONS - "$tmp" I think the problem stems from escaping the spaces in the passing of $OPTIONS to diff, but I couldn't figure out how to get it interpreted correctly. Any ideas? EDIT @DerfK: Good point with the ., I had forgotten about them... I tried the suggestion with the multiple level of quotes, but that is still not recognized: $ bzdiff "-I'\"Dump.completed.on\"'" tmp1.bz2 tmp2.bz2 diff: extra operand `/tmp/bzdiff.Di7RtihGGL'

    Read the article

  • Can not join additional domain controllers

    - by Hosm
    Hi all, I had a dead PDC and another not so synced domain controller for my domain. using comments here link now the so called secondary domain controller has seized domain controls and I can verify it from dsa.msc that it is a domain controller. I set up another domain controller (win2003SRV) and about to promote an AD on it as a domain controller for my domain. When I try to join the new domain controller to the domain I face DNS problem. here is some more detail DNS was successfully queried for the service location (SRV) resource record used to locate a domain controller for domain DOMNAME.A.B: The query was for the SRV record for _ldap._tcp.dc._msdcs.DOMNAME.A.B The following domain controllers were identified by the query: update.DOMNAME.A.B Common causes of this error include: - Host (A) records that map the name of the domain controller to its IP addresses are missing or contain incorrect addresses. - Domain controllers registered in DNS are not connected to the network or are not running. For information about correcting this problem, click Help. it is worth noting that update.DOMNAME.A.B is the current domain controller to which I'd like to add another controller named PDC.DOMNAME.A.B Ip address of update.DOMNAME.A.B is 192.168.200.1 and for pdc.DOMNAME.A.B is 192.168.200.100 querying DNS on both machine return correct results. Any idea?

    Read the article

  • SLES 10 Sp3 VMware tools error on install

    - by Elgreco
    I installed SUSE enterprise server 10 SP3 on a Esx 4 server The problem starts with the installation of vmware tools. "VmwareTools-4.0.0-193498.tar.gz" The tools wont start: Unable to start services for vmware tools Paravirtual ISCSI module: Failed Guest vmxnet fast network device: Failed. I fixed the guest vmxent ERROR by changing the NIC mode. any hint? i cant be the only one with the same problem..

    Read the article

  • Can't access server running CentOS 6.3 in vmware

    - by localhost
    I just installed CentOS on a vmware machine that uses a bridged connection, installed apache, php and mysql, but when I run service httpd start I get a warning(?): Starting httpd: httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain for ServerName I can connect to the server using putty, so I really have no idea why it won't load in the browser. EDIT: Httpd starts successfully, return [ OK ]. Running netstat -tuplen | grep :80 yields: tcp 0 0 :::80 :::* LISTEN 0 40392 15894/httpd I am able to connect with putty to 192.168.0.113, but browser says can't connect to 192.168.0.113

    Read the article

  • mdadm+zfs vs mdadm+lvm

    - by Alex
    This may be a naive question since I'm new to this and I cannot find any results about mdadm+zfs, but after some testing it seems it might work: The use case is a server with RAID6 for some data that is backed-up somewhat infrequently. I think I'm well served by any of ZFS or RAID6. Platform is Linux. Performance is secondary. So the two setups I am considering are: A RAID6 array plus regular LVM and ext4 A RAID6 array plus ZFS (without redundancy). Is this second option that I don't see discussed at all. Why ZFS+RAID6? It's mainly because the inability of ZFS to grow a raidz2 with new disks. You can replace disks with larger ones, I know, but not add another disk. You can accomplish 2-disk redundancy and ZFS disk growth using mdadm as the redundancy layer. Besides that main point (otherwise I could go directly to raidz2 without RAID under it), these are the pros-cons that I see for each option: ZFS has snapshots without preallocated space. LVM requires preallocation (might be no longer true). ZFS has checksumming (very interested in this) and compression (nice bonus). LVM has online filesystem growth (ZFS can do it offline with export/mdadm --grow/import). LVM has encryption (ZFS-on-Linux has not). This is the only major con of this combo I see. I guess I could go RAID6+LVM+ZFS... seems too heavy, or not? So, to close with a proper question: 1) Is there anything that inherently discourages or precludes RAID6+ZFS? Anyone has experience with a setup like this? 2) Are there possibilities for checksumming and compression that would make ZFS unnecessary (maintaining the possibility of filesystem growth)? Because the RAID6+LVM combo seems the sanctioned, tested way.

    Read the article

  • Error "403 Forbidden" on Sharepoint Search Settings Page

    - by user21924
    Hello I thought I had solved this nightmare by re-entering the values in my SSP properties set up, however accessing the Search Settings page error has reared it ugly head again. Now all solutions point to this method listed here * http://www.routtlogics.com/blog/Lists/Posts/Post.aspx?ID=6 * http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/f00651cd-e452-45b9-b19e-90e89c3c3ad4 * http://blogs.technet.com/sushrao/archive/2009/03/26/microsoft-office-sharepoint-server-2007-moss-403-forbidden-error-when-clicked-on-search-settings-page.aspx The above workaround(s) basically states that granting the local group WSS_WPG read and write permission to the Task folder in the Windows directory would solve the problem, however whenever I try to change to the permission attribute of this folder I get an access denied message, even when logged in as a Domain administrator, Enterprise and even the SharePoint Farm administrator. Please guys how do I get around this access denied issue. Thanks

    Read the article

  • Storage device not found on ESX4 with AIC-9410

    - by Mads
    I am trying to install ESX 4.0 update 1 on a Supermicro X7DBR-3 system with an embedded AIC-9410 HBA (this HBA is listed on the HCG with Vendor ID 9005 and Device ID 041f) . All SATA controllers are disabled in the BIOS and the logical drive shows up in the Adaptec device summary during POST, however there is nothing listed on the Storage Device screen. The HBA itself is listed if I run esxcfg-info but not if I run esxcfg-scsidevs -a (under ESXi for that last command) Any ideas where I can look next or what might be wrong?

    Read the article

  • Ubuntu Hardy : Testing for environment variables in udev rules doesn't seem to work

    - by Fred
    I have a Ubuntu 8.04 LTS (server edition), and I need to write a udev rule for it to act upon plugging a USB thumb drive. However, I need a different action depending on the filesystem of the drive. I know I can use the ID_FS_TYPE environment variable to check for the filesystem on the drive. Following instructions found here, I try a dummy udev rule as such : KERNEL!="sd[a-z][0-9]", GOTO="my_udev_rule_end" ACTION=="add", RUN+="/usr/bin/touch /tmp/test_udev_%E{ID_FS_TYPE}" ACTION=="add", ENV{ID_FS_TYPE}=="vfat", RUN+="/usr/bin/touch /tmp/test_udev_it_works" LABEL="my_udev_rule_end" However, when I plug in a thumb drive with a vfat filesystem (which should trigger both rules), I end up with a file called /tmp/test_udev_vfat, meaning the first rule was triggered successfully, and that the ID_FS_TYPE environment variable is "vfat", but I don't have the other file, meaning that although I know the ID_FS_TYPE env variable is "vfat", I can't seem to check against it for a match. I tried googling the thing, but pretty much every result seems to assume ENV{ID_FS_TYPE}=="vfat" works. I also tested the exact same udev rule on Ubuntu 10.04 LTS server, and I have the same result. I'm probably missing something very simple, but I just don't get it. Does anyone see what is wrong with my udev rule that would prevent it from matching on ENV{ID_FS_TYPE}? Thanks.

    Read the article

  • yum install php-devel amongst other commands returning problems

    - by user3791722
    I run yum install php-devel and it returns this. Typically I'd just run it with --skip-broken, but when I do, it still doesn't do the trick. Available: php-common-5.3.3-22.el6.x86_64 (rhel-x86_64-server-6) php-common(x86-64) = 5.3.3-22.el6 Available: php-common-5.3.3-23.el6_4.x86_64 (rhel-x86_64-server-6) php-common(x86-64) = 5.3.3-23.el6_4 Available: php-common-5.3.3-26.el6.x86_64 (rhel-x86_64-server-6) php-common(x86-64) = 5.3.3-26.el6 Available: php54w-common-5.4.29-2.w6.x86_64 (webtatic) php-common(x86-64) = 5.4.29-2.w6 Available: php54w-common-5.4.30-1.w6.x86_64 (webtatic) php-common(x86-64) = 5.4.30-1.w6 Available: php55w-common-5.5.13-2.w6.x86_64 (webtatic) php-common(x86-64) = 5.5.13-2.w6 Installing: php55w-common-5.5.14-1.w6.x86_64 (webtatic) php-common(x86-64) = 5.5.14-1.w6 You could try using --skip-broken to work around the problem When run with --skip-broken it returns this at the end: Packages skipped because of dependency problems: autoconf-2.63-5.1.el6.noarch from rhel-x86_64-server-6 automake-1.11.1-4.el6.noarch from rhel-x86_64-server-6 pcre-devel-7.8-6.el6.x86_64 from rhel-x86_64-server-6 php-5.3.3-27.el6_5.1.x86_64 from rhel-x86_64-server-6 php-cli-5.3.3-27.el6_5.1.x86_64 from rhel-x86_64-server-6 php-common-5.3.3-27.el6_5.1.x86_64 from rhel-x86_64-server-6 php-mysql-5.3.3-27.el6_5.1.x86_64 from rhel-x86_64-server-6 php-pdo-5.3.3-27.el6_5.1.x86_64 from rhel-x86_64-server-6 php-soap-5.3.3-27.el6_5.1.x86_64 from rhel-x86_64-server-6 php55w-cli-5.5.14-1.w6.x86_64 from webtatic php55w-common-5.5.14-1.w6.x86_64 from webtatic php55w-devel-5.5.14-1.w6.x86_64 from webtatic This problem has arisen with a few other similar commands when installing something related to php, except I've just done without them. I need to install this for something I'm trying to do. I do remember upgrading to PHP 5.4 and our entire infrastructure coming down due to it requiring PHP 5.3, so I downgraded as quick as possible to get everything back running and that may contribute to the issue. If you have any idea why this is happening and how I could get the package on the system while remaining on PHP 5.3, please let me know. Thanks.

    Read the article

  • nginx: problem configuring a proxy_pass

    - by Ofer Bar
    I'm converting a web app from apache to nginx. In apache's httpd.conf I have: ProxyPass /proxy/ http:// ProxyPassReverse /proxy/ http:// The idea is the client send this url: http://web-server-domain/proxy/login-server-addr/loginUrl.php?user=xxx&pass=yyy and the web server calls: http://login-server-addr/loginUrl.php?user=xxx&pass=yyy My nginx.conf is attached below and it is not working. At the moment it looks like it is calling the server, but returning an application error. This seems promising but any attempt to debug this failed! I can't trace any of the calls as nginx refuses to place them in the error file. Also, placing echo statement on the login server did not help either which is weird. The nginx documentation isn't very helpful about this. Any suggestion on how to configure a proxy_pass? Thanks! user nginx; worker_processes 1; #error_log /var/log/nginx/error.log; error_log /var/log/nginx/error.log notice; #error_log /var/log/nginx/error.log info; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /var/log/nginx/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; # # The default server # server { rewrite_log on; listen 80; server_name _; #charset koi8-r; #access_log logs/host.access.log main; #root /var/www/live/html; index index.php index.html index.htm; location ~ ^/proxy/(.*$) { #location /proxy/ { # rewrite ^/proxy(.*) http://$1 break; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Server $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_buffering off; proxy_pass http://$1; #proxy_pass "http://173.231.134.36/messages_2.7.0/loginUser.php?userID=ofer.fly%40gmail.com&password=y4HTD93vrshMNcy2Qr5ka7ia0xcaa389f4885f59c9"; break; } location / { root /var/www/live/html; #if ( $uri ~ ^/proxy/(.*) ) { # proxy_pass http://$1; # break; #} #try_files $uri $uri/ /index.php; } error_page 404 /404.html; #location = /404.html { # root /usr/share/nginx/html; #} # redirect server error pages to the static page /50x.html # #error_page 500 502 503 504 /50x.html; #location = /50x.html { # root /usr/share/nginx/html; #} # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # location ~ \.php$ { #root html; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; #fastcgi_param SCRIPT_FILENAME /usr/share/nginx/html$fastcgi_script_name; fastcgi_param SCRIPT_FILENAME /var/www/live/html$fastcgi_script_name; include fastcgi_params; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # Load config files from the /etc/nginx/conf.d directory include /etc/nginx/conf.d/*.conf; }

    Read the article

  • How do I improve my incremental-backup performance?

    - by Alistair Bell
    I'm currently using the traditional rsync+cp -al method to create incremental/snapshot backups of our server tree. The backups are going onto a pair of eight-disk towers connected to the backup machine (a Sandy Bridge machine with 16 GB of RAM, running CentOS 5.5) via four eSATA connections (four disks per connection). Each disk is a regular 2 TB disk, so we have 32 TB of disk space connected to the backup machine. We're backing up about 20 TB of data on the servers with this. The problem is that each daily backup is taking more than 24 hours, and the real time-killer isn't the actual rsync, but the time it takes to perform a cp -al of the tree locally on the backup machine. It's taking more than 12 hours just to make the shadow copy of the tree, and as far as I can tell the performance backlog is at the disk (top shows the cp using a lot of RAM but not a lot of CPU and mostly in uninterruptible-sleep state) We have the server data split into four major volumes (and a few minor ones), and each of these backups runs in parallel (with some offsets in the cron to try to get some disks' cp done first). There are two volumes on the backup drive, both striped LVM volumes of 16 TB each. So obviously I need to improve the performance because it's unusable as it stands. The first question is: when CentOS 6 comes out, with support for btrfs, will making snapshots of subvolumes with btrfs substantially increase this performance? The second is: is there a way, with ext3 or something else supported in CentOS 5 or 6, to 'encourage' it to put the directories/inodes in one part of a volume (which could happen to be the part that's on an SSD, via LVM) and the files in another? That would presumably solve the problem, but I don't know of ways to hint ext3 like that.

    Read the article

  • gmail dkim=neutral (no signature)

    - by Bretticus
    After testing much and retracing my steps, I still cannot get google mail to validate. My mail server is Debian 5.0 with exim Exim version 4.72 #1 built 31-Jul-2010 08:12:17 Copyright (c) University of Cambridge, 1995 - 2007 Berkeley DB: Berkeley DB 4.8.24: (August 14, 2009) Support for: crypteq iconv() IPv6 PAM Perl Expand_dlfunc GnuTLS move_frozen_messages Content_Scanning DKIM Old_Demime Lookups: lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmnz dnsdb dsearch ldap ldapdn ldapm mysql nis nis0 passwd pgsql sqlite Authenticators: cram_md5 cyrus_sasl dovecot plaintext spa Routers: accept dnslookup ipliteral iplookup manualroute queryprogram redirect Transports: appendfile/maildir/mailstore/mbx autoreply lmtp pipe smtp Fixed never_users: 0 Size of off_t: 8 GnuTLS compile-time version: 2.4.2 GnuTLS runtime version: 2.4.2 Configuration file is /var/lib/exim4/config.autogenerated My remote smtp transport configuration: remote_smtp: debug_print = "T: remote_smtp for $local_part@$domain" driver = smtp helo_data = mailer.mydomain.com dkim_domain = mydomain.com dkim_selector = mailer dkim_private_key = /etc/exim4/dkim/mailer.mydomain.com.key dkim_canon = relaxed .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS .endif .ifdef REMOTE_SMTP_HEADERS_REWRITE headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE .endif .ifdef REMOTE_SMTP_RETURN_PATH return_path = REMOTE_SMTP_RETURN_PATH .endif .ifdef REMOTE_SMTP_HELO_FROM_DNS helo_data=REMOTE_SMTP_HELO_DATA .endif The path to my private key is correct. I see a DKIM header in my messages as they end up in my gmail account: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mydomain.com; s=mailer; h=Content-Type:MIME-Version:Message-ID:Date:Subject:Reply-To:To:From; bh=nKgQAFyGv<snip>tg=; b=m84lyYvX6<snip>RBBqmW52m1ce2g=; However, gmail headers always report dkim=neutral (no signature): dkim=neutral (no signature) [email protected] My DNS results: dig +short txt mailer._domainkey.mydomain.com mailer._domainkey. mydomain.com descriptive text "v=DKIM1\; k=rsa\; t=y\; p=LS0tLS1CRUdJ<snip>M0RRRUJBUVV" "BQTRHTkFEQ0J<snip>GdLamdaaG" "JwaFZkai93b3<snip>laSCtCYmdsYlBrWkdqeVExN3gxN" "mpQTzF6OWJDN3hoY21LNFhaR0NjeENMR0FmOWI4Z<snip>tLQo=" Note that the base64 public key is 364 chars long so I had to break up the key using bind9. $ORIGIN _domainkey. mydomain.com. mailer TXT ("v=DKIM1; k=rsa; t=y; p=LS0tLS1CRUdJTiBQVUJM<snip>U0liM0RRRUJBUVV" "BQTRHTkFEQ0JpUUtCZ1<snip>15MGdLamdaaG" "JwaFZkai93b3lDK21MR<snip>YlBrWkdqeVExN3gxN" "mpQTzF6OWJDN3hoY21L<snip>Ci0tLS0tRU5E" "IFBVQkxJQyBLRVktLS0tLQo=") Can anyone point me in the right direction? I would really appreciate it.

    Read the article

  • Configure Postfix to send emails "via" a server [migrated]

    - by Zach Russell
    This is a question related to postfix and WordPress (but is more of a postfix question). To give some background, on a professional WordPress host (like WP Engine) when I receive WordPress Mail Notifications (comments, form submissions, new users, etc...) it will say in gmail sent from "predefined wordpress admin email" via email.wpengine.com. This is not blocked by Google's spam filters or anything. I have a cloud server set up and a WordPress site installed on it. When I send email from [email protected] it gets sent to spam and when I send email as [email protected] (me) it fails to send completely. This does, however send fine on WordPress. This goal of this it so send all emails via mail.wptemple.com and have them not get caught by spam filters. How can I accomplish this?

    Read the article

  • Mystery error running .NET 3.5 program on Windows Server 2008 R2

    - by MAW74656
    Why can't I run this program? I get error like: Description: Stopped working Problem signature: Problem Event Name: CLR20r3 Problem Signature 01: generatecodes.exe Problem Signature 02: 1.0.0.0 Problem Signature 03: 4f0b0ab4 Problem Signature 04: GenerateCodes Problem Signature 05: 1.0.0.0 Problem Signature 06: 4f0b0ab4 Problem Signature 07: 4 Problem Signature 08: 10 Problem Signature 09: System.IO.FileNotFoundException OS Version: 6.1.7600.2.0.0.274.10 Locale ID: 1033

    Read the article

  • What is causing a vm to exhibit packet loss?

    - by d03boy
    We have a pretty nice piece of hardware set up to run multiple virtual machines in vmware and one of the vm's is an instance of Windows Server 2003 running SQL Server 2005. For some reason we occasionally see 10-20 seconds of straight packet loss to this machine from remote machines (my workstation) as well as other vm's on the same physical hardware. I am using PingPlotter to keep a close eye on the packet loss. So far we've turned off flow control on the NIC but we are already running out of other things to try. What might be causing this and how can I identify the problem? Note: We also have another server with a very similar configuration with the same type of problem to a lesser extent (because its not used as heavily?)

    Read the article

  • Restart Fibre channel controller after blade bootup IBM HS bladecentre

    - by Spence
    I have a remote system that needs to resume on startup. If the system is simply powered on then the blades boot before the SAN is online and then the only thing you can do is restart the systems. Is it possible to restart the fibre channel controller? That way I could have a system restart the controller after boot, connect to the SAN and then restart all servers requiring SAN information? Please note that I'm not a sys admin, just shooting for ideas to get a clean startup to work, apologies if my terminology is wrong.

    Read the article

  • Insufficient Permissions on UNC Path for Physical Path in IIS7

    - by Eric C
    I've got a multi-server setup where Server A is hosting the html files and Server B is running IIS 7.5. I've specified a UNC path for the Physical Path of the website on Server B. When I try to hit localhost I'm receiving the following error: Cannot read configuration file due to insufficient permissions I am able to browse and modify files in the UNC path on Server B. I'm guessing it has something to do with IIS_IUSRS of Server B not having permissions, but I'm unsure how to add them to the shared directory of Server A.

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 179 180 181 182 183 184 185 186 187 188 189 190  | Next Page >