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Questions tagged [raid10]

RAID 10 is a combination of RAID 1 and RAID 0. RAID 10 can also be referred as RAID 1+0

Minimum disks needed for RAID 10 is 4.

When using RAID 10, 2 RAID 1 volumes are created and then these 2 volumes are put in RAID 0 mode.

Do not confuse this with RAID 01, which creates 2 RAID 0 volumes and then mirrors them. RAID10 layout

Linux MD RAID10 is a non-standard level that can permits setting up unusual layouts beyond what is possible with the standard RAID10. MD RAID10 requires a minimum of only two drives.

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Linux software RAID 10 array, failed drive, resize file system and migrate to a 3 drive RAID 1?

I have a software RAID 10 array which I recently noticed went into a degraded state. The OS is CentOS 5.8. It has 4x 500GB drives in 3 different arrays: /dev/md0 is RAID 1 and mounted to /boot (200MB ext3) /dev/md1 is RAID 10 and is swap (4GB…
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RAID 10: SPAN 2 vs SPAN 4

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…
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Software Raid 10 corrupted superblock after dual disk failure, how do I recover it?

I have a software raid 10 with 6 x 2tb hard drives (raid 1 for /boot), ubuntu 10.04 is the os. I had a raid controller failure that put 2 drives out of sync, crashed the system and initially the os didnt boot up and went into initramfs instead,…
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FreeBSD 9 (amd64) reboot/shutdown process is very slow

I have a Dell Poweredge 2900 III with FreeBSD 9 (amd64), the server uses mfi wich handles a raid10, I had to reboot the server, but notice that either when rebooting or shutting down the server, something is going wrong, besides taking to much time…
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create raid10 with lvm

I came across an error when I create RAID10 with LVM2. I have four PVs and when I create LV using this command: sudo lvcreate --mirrors 1 --stripes 2 -l7630 -n lv0 vg0 --corelog display the VG, it should be empty,but it has half.. VG Name …
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RAID 10 or RAID 50 on 16x 900 GB 10K SFF disks

What type of RAID would you recommend for a single storage segment across 16 of 900 GB 10K SAS SFF disks on an EMC VNX 5100 storage unit? Disk 17 is a hot-spare. RAID 10, RAID 50 or something else? Unformatted capacity is 14.4 TB, but we will not be…
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Building hybrid RAID10 + RAID5 environment

I have the following configuration: simple video surveillance system (server 1: recording past 24h; server 2: recording past 30 days). I am primarily using the content on the 24h storage, while I recompress and archive the following 30 days on the…
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Poweredge R710 configuring RAID 10 with one disk missing

I have ordered Poweredge R710 server with 4 diskas planning to configure them as RAID10. However I only got 3 disks delivered (4th will be delivered in 10 days). I am wondering can I create RAID10 array with one disk missing and start installing my…
Marko
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perfmon reporting higher IOPs than possible?

We created a monitoring report for IOPs on performance counters using Disk reads/sec and Disk writes/sec on four servers (physical boxes, no virtualization) that have 4x 15k 146GB SAS drives in RAID10 per server, set to check and record data every 1…
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Is this a possible/good RAID setup?

Earlier this week, one drive in our office's 2-year-old RAID5 array (4x 750GB Seagate drives, HP ProLiant 110 with Smart Array controller, running Windows Server 2003) failed. From what I know, RAID5 should be able to handle a single drive failure,…
Emily
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Shared storage solution for our sql server backups

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…
Gokhan
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RAID config. for a Heavily Used File Server

I'm building a new file server to replace an existing server. The current workload is about 50 connections that are heavily reading and writing files all day long. It is about 50/50 read to write. Most of the files are less than 10MB, though some…
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Windows Software Raid 0 over hardware raid 1 does this equal a hybrid 1+0?

I've got a server running windows 2008R2. The hardware controller can only do Raid 1 or 0 and it's hotswappable. I have 4 drives (hot swappable hardware), each pair is mirrored (raid 1). I'd like to do raid 10 but the hardware can't. So, I'm…
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Raid 10 read speed does not scale with disk addition

We have 2 Dell boxes with the Perc H700 Raid Controller. One box has 6 x 600G disks configured as a single Raid 10 volume The other box has 12 x 600G disks configured as a single Raid 10 volume I did a simple dd test by writing a file 2 x size of…
RaidFan
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Two failed disks in a RAID 10 Array. One hot-spare, active. What's the replacement sequence?

Given a hot-swappable 15 spindle RAID 10 array with two failed disks. There is one global hot spare, and it is actively "sparing" the first of the two failed disks. The array is running, but has no further redundancy mechanisms. Onsite tech…
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