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• Software RAID to hardware RAID, can it be done?

  - by gtaylor85

  Can it be done ... well. (For the record, I did not set this server up.) In my server there are 4 disks. 3 of them are in a software RAID5, and 1 has the OS installed. I want to buy a RAID controller, 4 new HDs and set up a hardware RAID5. If possible, I'd like to just image the current setup, and use it to build my new one. My questions are: Can I image a 3 disk RAID5 to 4 disk RAID5? Are there problems with this? What is considered best practice for your OS. To have it on a separate disk like it currently is, or to install it on the RAID5? Thank you. I can clarify anything. I'm not sure what other info might be pertinent.

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• Provision storage in SAN encironment

  - by wildchild

  hi,.. Can somebody help in understanding how Lun Provisioning is done in clariion based on client requirement. Say, a client needs one 50 GB space on the host( for application) ,two -350 GBs ( for DB and stuff) on the same host and i have 4 raid groups with space of 200 GB in one 50 GB in second and 400 GB and 400GB in rest two all having 5 disks. And , I 'm using Raid 5 only. How do i provision keeping performance in mind( so that performance hit is not there)?..And i need to understand the concept of meta head as well. Please help me by elaborating the above scenario..I am learning to provision storage in non productive environment( b'fore going ahead and working on client prod server) and i have been learning a lot from SF ...I request the seniors here to help me understand it better. Thanks for reading

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• Tracking down random BSOD on windows 7

  - by pehrs

  I have gotten a computer running windows 7 handed to me that randomly, several times a day, bsods with a PAGE_FAULT_IN_NONPAGED_AREA (50) or WHEA_UNCORRECTABLE_ERROR (124). Crashes happens regardless of load. I am running out of ideas for how to track this down. Analyzing the minidumps shows the crash to be in ntkrnlmp.exe/WMIADAP.exe System has plenty of power (600w) Ram checks out fine using memtest86+ over a weekend. System is clean inside. No dust build up. Temperatures stay low. As far as I know (and reliability history shows) no new drivers were installed for several months before the problems started. All drivers are now up to date. sfc /scannow reports the system as clean. CHKDSK reports the disks as clean Removing the AV (Avast) has no effect. Any more things that should be tried on windows 7 before I start replacing the hardware?

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• Home server - HP Proliant Microserver - Software and setup - OS on USB stick? [closed]

  - by Lloyd Watkin

  I've just purchased a HP ProLiant Microserver for home use. I want to set up with web server, samba shares, the usual stuff. My question is really about system setup. It has an internal USB socket so I've attempted to install a copy of Fedora 14 onto it. I turned off X/Gnome, but it still ran like a pig. I've now put the OS on one of the internal disks (250Gb, 7200rpm), but I was wondering if there was a way to utilise the internal USB to give me better power-saving allowing the hard drives to be shut down when not in use. How would you set this server up? I'd rather not go to the extra cost of an SSD right now, but if that's the best way then so be it.

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• Create XFS volume on /dev/sg* device

  - by cpt.Buggy

  Now I have couple of Supermicro 24x2Tb SATA servers and I have now idea how to get access to disks. I need to create XFS volume on each of them but really don't know how to do it, because fdisk doesn't see them. # sg_scan -i /dev/sg0: scsi0 channel=0 id=0 lun=0 [em] ATA ST3250318AS CC38 [rmb=0 cmdq=0 pqual=0 pdev=0x0] /dev/sg1: scsi1 channel=0 id=0 lun=0 [em] ATA ST3250318AS CC38 [rmb=0 cmdq=0 pqual=0 pdev=0x0] /dev/sg2: scsi6 channel=1 id=8 lun=0 [em] Hitachi HDS722020ALA330 JKAO [rmb=0 cmdq=1 pqual=1 pdev=0x0] ... ... ... /dev/sg25: scsi6 channel=1 id=31 lun=0 [em] Hitachi HDS722020ALA330 JKAO [rmb=0 cmdq=1 pqual=1 pdev=0x0] /dev/sg26: scsi6 channel=3 id=0 lun=0 [em] LSILOGIC SASX36 A.1 7017 [rmb=0 cmdq=1 pqual=0 pdev=0xd] # sg_map /dev/sg0 /dev/sda /dev/sg1 /dev/sdb /dev/sg2 .. ... ... /dev/sg25 /dev/sg26 I can't use fdisk and mkfs, what should I do?

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• XenServer migrate machines between hosts

  - by Hubert Kario

  I have a XenServer 5.6 Free setup with 5 VMs (Windows and Linux) using about 1.5TB of directly attached storage. Because our virtualisation needs have grown a bit, we currently are preparing a faster XenServer 6.0 Free machine with more RAM and a more storage. Again, directly attached disks. How can I migrate the VMs between XenServer machines? I don't need to keep the machines up and running during migration, but using VM export and import would definitely take too long. Would making a VM with the same configuration on new host and dd'ing the LVM volume over network be the only quick and least painful solution? Are there any "gotchas" I should look out for when doing something like this? The old machine has an AMD Phenom II, the new has Intel Xeon E5 CPUs.

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• Checking whether product key will work with SBS 2003

  - by Rob Nicholson

  We've recently absorbed a small company who had a Dell PowerEdge server running SBS 2003. For some reason, the hard disks have been wiped. We have the product key though from the sticker on the side of the case but not the installation media: Win SBS Std 2003 1-2 CPU 5-CAL OEM software We do have a Dell labelled set of four CDs labelled SBS 2003 in our store and I've built a VM from this media but it doesn't prompt for the product key during install. Is there any way to ascertain whether this media will work with this product key without going through activation? I know one can activate several times but would prefer to check we've got the right media before doing this. Thanks, Rob.

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• Cannot find the 2nd datastore after upgrading ESXi 3.5

  - by aXqd

  I have an ESXi server (version 3.5) with about 60 VMs. It has 2 hard disks, each of which is regarded as a datastore. After upgrading through 'VMware Infrastructure Update' tool(still staying with 3.5 instead of 4.0) and a reboot, I can only see the 1st datastore. Hence many VMs are, now, inaccessible. I wonder how I can get the 2nd datastore back. I am sorry, but I did't have the 2nd datastore backuped before. BTW, I am still thinking of upgrading directly to version 4.0 to see if it can fix the driver problem. How about that?

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• VMWare Server lck file keeps coming back

  - by muncherelli

  I am running VMWare Server 2.0 on a Debian Lenny system as a host OS. I am getting this error when I try to start a Virtual Machine Cannot open the disk '/var/lib/vmware/Virtual Machines//.vmdk' or one of the snapshot disks it depends on. Reason: Failed to lock the file. So I looked around on the web and found that I need to delete the .lck folder and file in order to get this error This seems to happen any time I reboot my Debian Server. The Virtual Machines sometimes do not recover and this lck file is causing problems. Should I create a cron script that does a rm *.lck on each of my machines on reboot? Looking for any direction on how to resolve this. It seems when i do a "reboot" command it is maybe not gracefully shutting down the VMware containers so the lock files are still intact?

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• Using off-the-shelf hardware for brand-name servers; Possible? Good idea?

  - by threecheeseopera

  Is it possible or advisable to use 'regular' not-sanctioned-by-the-server-manufacturer hardware in high end servers? Often these manufacturer-supplied parts have a very high price markup, and I wonder if it's always necessary (understanding that they probably apply more rigorous requirements to this hardware). For example, Dell sells 300GB 15,000rpm serial-attached scsi drives for a certain server family for almost $600 each, while newegg sells a drive with the same specs for almost half the price http://www.newegg.com/Product/Product.aspx?Item=N82E16822116059. Do we really need to pay these high markups, especially for disks that are likely RAID-ed and so guarded against catastrophic failure?

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• Losing partitions after every reboot

  - by Winston Smith

  I have an Acer laptop with one hard disk, which up until yesterday had 4 partitions: Recovery Partition (13GB) C: (140GB) D: (130GB) OEM Partition (10GB) I read that the OEM partition has all the stuff needed to restore the laptop to the factory settings, but since I'd already created restore disks and I needed the space, I wanted to get rid of it. Yesterday, I used diskpart to do that. In diskpart, I selected the OEM partition and issued the delete partition override command which removed it. Then I extended the D: partition into the unused space using windows disk management. Everything worked fine, until I rebooted my laptop, at which point the D: drive vanished. Looking in windows disk management again, I can see that there's an OEM partition of 140GB, which is obviously my D: drive. So I used EASEUS Partition Master and assigned a drive letter to the 'OEM' partition and I was able to access my files again. However, every time I reboot, it reverts back. How do I fix this permanently?

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• MSA20 RAID5 recovery failure due to URE on another disk

  - by Andrey

  I have MSA20 with one disk array on 12 disks and 3 LUNs on it (each raid 5). A few days ago one disk in one of the LUNs was failed and I replaced it. But raid5 recovering failed at 13% and I see in ADU report that one of the disk has "Errors Logged = 5566" and according SCSI specifications it is URE (Sense Code=0x11, Qualifier=0x00). In serial log I also see URE error. It seems that Raid5 can't be rebuilt because of this. So I have a few questions: Is there a way to recover raid5 still? If I leave new disk that was replaced and remove disk with URE, will other LUNs be destroyed or just failed LUN? If all LUNs will fail what is the sense to make each LUN with own raid on one disk group array if 2 failed disk can destroy all? As I understand the preferred way is to create one disk array for one LUN in future and not one array with few LUNs? Thanks.

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• Too much free space on FreeNAS - ZFS

  - by Guillaume

  I have a FreeNAS server with 3 x 2 To disks in raidz1. I would expect to have about 4 To of space available. When I run zpool list I get: [root@freenas] ~# zpool list NAME SIZE USED AVAIL CAP HEALTH ALTROOT main_volume 5.44T 3.95T 1.49T 72% ONLINE /mnt I was expecting a size of 4 To. Also, used space as reported by zpool list does not match what's reported by du: [root@freenas] ~# du -sh /mnt/main_volume/ 2.6T /mnt/main_volume/ There are quite a few things that I dont yet completely understand about ZFS. But at the moment I am mostly worried that I misconfigured my system and that I dont have any storage redundancy. How can I make sure I did not do an horrible mistake ... For the sake of completeness, here is the output of zpool status: [root@freenas] ~# zpool status pool: main_volume state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM main_volume ONLINE 0 0 0 raidz1 ONLINE 0 0 0 gptid/d8584e45-5b8a-11d9-b9ea-5404a6630115 ONLINE 0 0 0 gptid/d8f7df30-5b8a-11d9-b9ea-5404a6630115 ONLINE 0 0 0 gptid/d9877cc3-5b8a-11d9-b9ea-5404a6630115 ONLINE 0 0 0 errors: No known data errors

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• How to Mirror or Clone a Spanned Volume in Windows 2008

  - by Matt

  I have a spanned volume (3x6+ TB disks spanned to one 20+ TB volume) that I need to mirror or clone to a new 20+ TB (unspanned) volume. Once mirrored or cloned I'm going to destroy the original volume and reuse the storage elsewhere. Windows 2008 will not allow me to mirror it because the original is a spanned volume. I cannot simply copy the data, because there are sparse files on the volume. So the OS thinks there is 150+ TB used on the disk when there really is only around 18TB used physically. When I try to use the copy command it won't run because it thinks the destination volume needs to be 150+ TB to hold it all. A conundrum, but I figure someone here has the answer. Thanks, Matt

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• How I disable "Safely remove hardware" in Windows 8?

  - by DarkGhostHunter

  I have a Marvell 91XX and I just updated to Windows 8. The problem I have with the latest drivers 1.0.2.1027 is the absence of "Policies" tab inside the Properties in the Device Manager, where I could disable de "Safely Remove Hardware". It was in Windows 7, but in the new version is not, so the OS shows my two hard disks has removable hardware and I can't do anything about it. Is gone forever? Is in another part? Or is not supported? PD: The best I can come up for a fix is to roll back to Windows 7, see if the option changes some regedit value, export, update to Windows 8 and import.

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• Solution for storing sata drives outside of case

  - by Jeffrey Kevin Pry

  I have a system that has 8 sata disks in a software raid 5 array using mdadm. My issue is that I want to move the drives from inside of the computer case in order to cool more efficiently. I have looked all over the web and only seem to find enclosures that hide the drives connectors behind an estata port or some other internal raid controller. Basically what I want is an enclosure or equivalent that I can run independent sata cables to and either power as well, or have it have its own power supply. I have the sata ports on the motherboard available and don't want to limit io by using one port with a multiplier or the like. One final caveat, I am a college student on a budget and don't have a fortune to spend on such an enclosure. Thanks in advance for your help and advice.

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• PC won't boot / USB and PS2 keyboards don't work

  - by Truncheon

  My brother's PC has stopped working. He now cannot boot into windows, and he can't access BIOS by pressing the DEL key as no keyboards work. He has tried 4 different keyboards, one of which is PS/2. He tried the USB keyboards on all the USB ports. I don't know why the BIOS would show the message "Floppy disks fail (40)", as there is no floppy disk drive in the PC. He has upgraded from XP to Vista (yes that's right, upgraded keeping the XP drivers, eyes roll). A BSOD occurred in Vista while he was browsing files. What steps should be taken to troubleshoot the problem?

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• HP DL370 G6 expansion

  - by user72185

  Hi, we are running a HP DL370 server with 6 x 300 gb disks on RAID 5. Due to a Windows update causing our server to fail recently, we couldn't access the data. I now want to separate the data from the OS (Windows server 2008 r2) so that if anything like that happens again, we can route everyone through a separate server. I have seen these HP storageworks enclosures (msa70) and have a couple of questions: Can I just take out our 2.5 inch 10k SAS drives, install them in the new Storageworks NAS and hey presto we would be up and running? If I wanted to then add another drive (I think there are 25 bays), can I just insert a blank but identical drive and the RAID 5 would dynamically expand to incorporate the new drive. Many thanks Adrian

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• Disk is apparently in use by the system

  - by Shaun

  I've just fitted two disks to my home server. I'm trying to format and then raid them but I'm getting a problem that hours of Googling hasn't resolved this. The error that I'm getting is: # mkfs.ext3 /dev/sdb1 mke2fs 1.39 (29-May-2006) /dev/sdb1 is apparently in use by the system; will not make a filesystem here! # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 4.0G 1.9G 2.0G 49% / none 380M 0 380M 0% /dev/shm /opt/xensource/packages/iso/XenCenter.iso 51M 51M 0 100% /var/xen/xc-install # mount -t ext3 /dev/sdb1 /mnt/b mount: /dev/sdb1 already mounted or /mnt/b busy I'm new to this and it's got me beat. I wouldn't ask if I hadn't done my research first. Thanks.

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• Can Windows 7 restore itself from image to a smaller HDD than original?

  - by Borek

  I've created a full system image using the built-in Win7 utility, it was from a 300GB drive but there is only about 50GB of data. I then swapped disks in my notebook, the new one being 80GB SSD and now when I boot to the system restore applet, go through all of the settings (finding the backed up image on a network share, confirming that I'm willing to repartition my disk etc.), I get this: The system image restore failed. No disk that can be used for recovering the system disk can be found. [Details] Is this because I'm trying to restore to a smaller disk? (Even though the data should fit without any problems, there being only 50GB of it.)

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• Is vSphere's Data Recover appliance 'production-ready'?

  - by Chopper3

  I have a smallish lab environment (16 x ESX4iU1 hosts and VC4U1) that I periodically want to backup. Normally in production we snap to secondary SAN boxes then have disk-based VTL backups via NetBackup which eventually migrate to off-site removable disks but this seems like an overkill for my own kit. I've spent a bit of time with vSphere's 'Data Recovery' appliance, it was easy enough to setup and I've not really ran into any issues with it but that doesn't mean I trust it fully. Have you had any experiences with it, positive or negative that would help me decide whether to trust it or pay Symantec for more licences? Thank you in advance.

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• I want to build an debian apt site for local LAN updates

  - by user73504

  Hi, I have downloaded all debian's DVD disks, and I have set up apache httpd service. I combined all dvd disk 's file, but I found the .gpg file I need and I can't create it. it looks like source's signature file. so when I set my /etc/apt/sources.list file as follow: deb http://192.168.1.102/apt/debian squeeze main contrib it noticed me the gpg files verilied faild. so I want to know , how to create gpg file, and do I need some other work except put DVD's file to the apache's htdocs path?

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• How can I improve performance over SMB/CIFS for an application that has poor write speeds?

  - by Jeremy

  I have a third party application that reads several large files and generates a third large file. Its performance is quite good when the generated file is stored on "local storage", i.e. either a direct attached or iSCSI-based disk. The source files that are read can be stored remotely on our NAS and accessed via SMB with little effect on performance. However, if we attempt to write the target file to any kind of SMB/CIFS share (Samba or Windows Server) the performance drops almost ten-fold. This is unacceptably slow in our case. Writing files to network shares is not otherwise slow. I can copy large files to SMB shares and get great performance - near what I would expect is possible given the disks and network in question. I have a theory that this application's problem with SMB shares has something to do with a lack of write caching over the share and perhaps lots of network roundtrips. Is this possible and is there anything that can be done about it?

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• Booting Windows7 kernel from an initrd/wim image file

  - by Ivo

  I'm wondering if it's possibile to have Win7 kernel and relative drivers (especially storage drivers) to boot from an initrd-like image file (maybe .wim?) and later then mount the windows root partition and complete the load of the full OS? I'll try to explain why: I'm running an emulated environment with NO REAL BIOS, and I'm passingthrough a raid storage controller. I want windows to boot from this controller array, but of course the BCD manager cannot access disks in the array until kernel and relative controller storage drivers are loaded. To be clear I get the classical winload.exe missing error. I need a similar solution to what Linux does, loading the kernel and his drivers, and later then mount the root partition and complete the boot. Any ideas or advices?

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• Storage disk format to use to be utilised by all OS

  - by ClothSword

  Aiming to have a large internal HDD to store files, and several OSes on separate disks. They all need to read and write to one storage drive. Ubuntu (13.04+) Mac OSX (10.8+) Windows (7+) What format should the drive be? Would like to avoid buying third party software, here's what I have discerned so far: NTFS - Can't be written to by Mac without buying third party software? ext3 - Windows can't read, third party software in development. Mac has OSXFUSE HFS+ - Buy third party and/or faff around to get working on windows exFAT - Cross platform, but breaks MS patents?

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