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Search found 139 results on 6 pages for 'raid10'.

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• RAIDZ vs RAID1+0

  - by Hiro2k

  Hi guys I just got 4 SSDs for my FreeNAS box. This server is only used to serve a single iSCSI extent to my Citrix XenServer pool and was wondering if I should setup them up in a RAIDZ or a RAID 1+0 configuration. This isn't used for anything in production, just for my test lab so I'm not sure which one is going to be better in this scenario. Will…

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• LSI MegaRAID LINUX got Optimal after degradation but strange POST message

  - by kesrut

  Linux server box with LSI MegaRAID controller got degraded. But after some time RAID status changed to Optimal. Adapter 0 -- Virtual Drive Information: Virtual Drive: 0 (Target Id: 0) Name : RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0 Size : 2.727 TB Mirror Data : 2.727 TB State …

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• Zero-channel RAID for High Performance MySQL Server (IBM ServeRAID 8k) : Any Experience/Recommendati

  - by prs563

  We are getting this IBM rack mount server and it has this IBM ServeRAID8k storage controller with Zero-Channel RAID and 256MB battery backed cache. It can support RAID 10 which we need for our high performance MySQL server which will have 4 x 15000K RPM 300GB SAS HDD. This is mission-critical and we want as much bandwidth and performance. Is this a…

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• SQL Server: One 12-drive RAID-10 array or 2 arrays of 8-drives and 4-drives

  - by ben

  Setting up a box for SQL Server 2008, which would give the best performance (heavy OLTP)? The more drives in a RAID-10 array the better performance, but will losing 4 drives to dedicate them to the transaction logs give us more performance. 12-drives in RAID-10 plus one hot spare. OR 8-drives in RAID-10 for database and 4-drives RAID-10 for…

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• How many disks to use for eight channel RAID controller

  - by Tvrtko

  I have a 3ware 8 channel SAS controller and a back plane extender (also 8 channel) which can take 16 drives. I will be creating a single RAID 10 volume. I know that adding more drives has positive effect on performance, but I'm not sure if adding more than 8 drives on an 8 channel controller will have any positive impact at all. Am I wrong? …

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• RAID 10: SPAN 2 vs SPAN 4

  - by LaDante Riley

  I am currently configuring RAID 10 (first time doing RAID ever) for a server at work. In the Configuration Utility. I am given the option of either span 2 or span 4. Having never done this before, I was curious if someone could tell me the pros and cons of for each span? Thanks The server is a Poweredge r620 with a PERC H710 mini (Security…

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• Zero-channel RAID for High Performance MySQL Server (IBM ServeRAID 8k) : Any Experience/Recommendation?

  - by prs563

  We are getting this IBM rack mount server and it has this IBM ServeRAID8k storage controller with Zero-Channel RAID and 256MB battery backed cache. It can support RAID 10 which we need for our high performance MySQL server which will have 4 x 15000K RPM 300GB SAS HDD. This is mission-critical and we want as much bandwidth and performance.…

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• Dell R320 RAID 10 with CacheCade

  - by Geekman

  I'm looking for a higher-performance build for our 1RU Dell R320 servers, in terms of IOPS. Right now I'm fairly settled on: 4 x 600 GB 3.5" 15K RPM SAS RAID 1+0 array This should give good performance, but if possible, I want to also add an SSD Cache into the mix, but I'm not sure if there's enough room? According to the…

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• Linux software RAID 10 implementation

  - by fabrik

  Hello there! I don't want to force anybody to make it on behalf of me but trust me: i've looked hundreds of sites and i can't find a good starting point for this. I have 4x500Gb HDD's which i want to set up in RAID 10. The most promising description is here, but it's a little old and unclear for me, above all i prefer Debian…

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• RAID controller dropping the wrong drive

  - by bramp

  I've been having an issue with 3ware 9500S-8 RAID 10, and I have contracted their tech support, but I wanted to hear the serverfault community's recommendations. Firstly, all my data is backuped and secure, so I don't mind blowing my RAID away if I have to. But let me describe the problem I've been seeing. A month ago, disk…

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• Raid 5 with hot spare or RAID 10 with no hot spare?

  - by Boden

  Yes, this is on of those "do my job for me" questions, have some pity:) I'm at the limit for what I can do with the number of hard drives in a server without spending a substantial amount of money. I have four drives left to configure, and I can either set them up as a RAID 5 and dedicate a hot spare, or a RAID 10 with no…

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• Shared storage solution for our sql server backups

  - by Gokhan

  We have 3 clustered sql servers. We have 5+ multi terrabyte databases and their backup files (compressed using quest litespeed) are hitting over 600gb each, We are required to keep at least a week or two weeks (if we can) of weekly full backups and then 6 days differential backups, and a week or 2 weeks worth of log…

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• Software Raid 10 on VirtualBox?

  - by user791022

  I want to learn how to use Software Raid 10, is it possible to use VirtualBox by adding four storage images? This is my plan: 4x 100mb partitions (1 on each drive) configured as a raid 1 for /boot in ext3. Then with the remaining space on each drive, setup a software raid partition and configure it to to LVM and…

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• RAID 10 or RAID 5 for multiple VMs - what is the best choice?

  - by Lars Fastrup

  I have just ordered a new rig for my business. We do a lot of software development for Microsoft SharePoint and need the rig to run several virtual machines for development and test purposes. We will be using the free VMware ESXi for virtualization. For a start, we plan to build and start the following VMs - all with…

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• Installing Solaris 10 on sunT5220 - ZFS/UFS raid 10?

  - by Matthew

  I am in a bit of a time crunch, and need to get two T5220's built. We were very happy to see two boxes in our aged inventory which had 8 HDD's each, but didn't think to check if they were running hardware RAID or not. Turns out that they aren't. When we install, we are given the option to use UFS or ZFS, but when we…

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• RAID 10, how layout works ?

  - by Bastien974

  I'm trying to figure out how exactly works the RAID 10 in linux with mdadm. I want to create a RAID 10 out of 4 partitions, let's say a, b, c and d. a and b are on the array 1, c and d array 2. So what I want is to have the couple a and b, c and d in RAID 0. Then on top of that, a RAID 1. The option in the mdadm…

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• How to move a windows machine properly from RAID 1 to raid 10? [migrated]

  - by goober

  Goal I would like to add two more hard drives to my current RAID 1 setup and create a RAID 0 setup on top of the two RAID 1 setups (which I believe is referred to as "RAID 10"). Components Involved Intel P68 Chipset Motherboard 4 SATA ports that can be configured for Raid An intel SSD cache that sits in front…

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• When using RAID10 + BBWC why is it better to separate PostgreSQL data files from OS and transaction logs than to keep them all on the same array?

  - by Vlad

  I've seen the advice everywhere (including here and here): keep your OS partition, DB data files and DB transaction logs on separate discs/arrays. The general recommendation is to use RAID1 for OS, RAID10 for data (or RAID5 if load is very read-biased) and RAID1 for transaction logs. However, considering that…

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• raid md device is not remove from memory, how to overcome this problem

  - by santhosha

  i create raid 10 , i removed two arrays form md11 one by one , after that i going to editing the contents those are mounted ( it will be not responding stage), after i try for remove arrays those are left it is shows device or resource busy ( is not removed from memory). i try to terminate process this is also…

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• raid md device is not remove from memory, how to overcome this problem

  - by santhosha

  i create raid 10 , i removed two arrays form md11 one by one , after that i going to editing the contents those are mounted ( it will be not responding stage), after i try for remove arrays those are left it is shows device or resource busy ( is not removed from memory). i try to terminate process this is…

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• Software RAID 10 on Linux

  - by vpetersson

  For a long time, I've been thinking about switching to RAID 10 on a few servers. Now that Ubuntu 10.04 LTS is live, it's time for an upgrade. The servers I'm using are HP Proliant ML115 (very good value). It has four internal 3.5" slots. I'm currently using one drive for the system and a RAID5 array…

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• Single/Mulitple LUN for vmware vm hosting

  - by Yucong Sun

  I'm building a iscsi storage system for hosting about ~500 Vmware vm running concurrently. And I have a disk array with 15 disks, I only need moderate write performance but preferably not SPOFed. so, that leaves me with RAID1 / RAID10 , I have couple choices: 1) 3x LUN 4disk RAID10 + 3 hot-swap 2)…

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• Experience with Intel X25-M 160GB and Oracle

  - by derobert

  We're considering building an Oracle database with 12 Intel X25-M G2 160GB drives in software RAID10. It'd be running Linux. Database gets some very heavy write activity during the early morning data load, other than that it is mostly read-only (and the read load is fairly minimal). We're currently…

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• How to re-add RAID-10 dropped drive?

  - by thiesdiggity

  I have a problem that I can't seem to solve. We have a Ubuntu server setup with RAID-10 and two of the drives dropped out of the array. When I try to re-add them using the following command: mdadm --manage --re-add /dev/md2 /dev/sdc1 I get the following error message: mdadm: Cannot open…

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• Why is my RAID /dev/md1 showing up as /dev/md126? Is mdadm.conf being ignored?

  - by mmorris

  I created a RAID with: sudo mdadm --create --verbose /dev/md1 --level=mirror --raid-devices=2 /dev/sdb1 /dev/sdc1 sudo mdadm --create --verbose /dev/md2 --level=mirror --raid-devices=2 /dev/sdb2 /dev/sdc2 sudo mdadm --detail --scan returns: ARRAY /dev/md1 metadata=1.2 name=ion:1…

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