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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 5 Random Small Write Performance Abysmal - Reconfiguration Advice

I have 3 1 TB HDDs and 3 500 GB HDDs. Right now each size grouping is in a RAID 5, both of which are in an LVM volume group (with striped LVs). I'm finding this to be too slow for my usage on small random writes. I've fiddled with stripe sizes both…
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Setup Raid 10 for backup store

We have HP DL380p Gen8 with Smart Array P420i: 10HDDx6TB, 2 RAID10 6 and 4 HDD, for backup store via Arcserve UDP, deduplication backup configured for 16 KB blocks, we are not satisfied with the speed of recovery, want a better option, how do we…
mgkmgk
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Expand existing RAID1 zpool into RAID10 zpool

I'd like to expand/convert my existing RAID1 (2x 3TB mirror) zpool to RAID10 zpool by adding 2 more 3TB HDDs without losing (or moving) data stored on my existing pool. The final result will look like 2x3TB (existing mirror) + 2x3TB (new mirror)…
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RAID 10 Single drive is showing up as multiple drives in Windows Server 2016

I installed a Windows Server 2016 in a physical server with RAID 10 (LSI card), whose configuration is shown below: Even though the RAID configuration shows one 3.725 TB drive, this shows up as 2 disks in windows. I installed the operating system…
Miguel Mesquita Alfaiate
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RAID 10 Configured in Smart Array Administrator but after install centos 7 show all disks

I have an HP ProLiant DL320e Gen8 with 4 disks. I have configured the disks as a single RAID10 array in the HP Smart Array Administrator. After configuring Smart Array Administrator I can see 1 logical drive with mirroring everything looks OK. But…
user3406957
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MegaRAID storage manager update and now tons of media errors

I was just poking around a 5 year old server and noticed the MegaRAID storage manager (14.08.01) appeared to be not responding. The server has been running for something like 400 days without rebooting. I didn't want to reboot it so I installed the…
Kevin Morse
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Mount a hardware RAID in Ubuntu 16.04 LTS

I added a hardware RAID to my server. It was configured with the LSI-MR9361-8i as a 87TiB RAID 10. sudo fdisk -l returns: Disk /dev/sda: 87.3 TiB, 96009698934784 bytes, 23439867904 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size…
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How to fix zpool detach hanging the entire pool?

When trying to replace a disk in a zpool on a FreeBSD 10.3-RELEASE-p20 system yesterday, the zfs filesystems became unresponsive after issuing the zpool detach srv gpt/d0 command. The server acts as an NFS server, WebDAV server and iSCSI target, and…
Josh
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Raid 10 recovery on Dell Server - Perc 6/i

I have a Raid 10 setup on Dell Perc 6/i controller with 4 drives + hot spare. While server was off, new drive was added yesterday in drive 1 slot that was empty for last 2 months. After turning server back on, co-workers say Ctrl+R pages showed…
webaholik
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RAID 10 Stripe Size for XenServer

Below is our current server configuration. In a few weeks I will be simulating a disaster recovery by installing 5 new disks (1 hot spare) and restoring all VMs from the backups. Will I gain anything by changing the RAID stripe size to something…
Reado
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RAID 10: Does it impact performance if I have 24 small drives in Raid10 vs. 4 larger drives?

Does it impact performance if I have 24 small drives in Raid10 vs. 4 larger drives? The root of the question is does it have any performance or redundancy benefit if I fill out all 24 of my bays with alot of smaller drives or just stick to 4 drives…
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IBM System x3650 M3 - how to expand RAID 10 array

I have RAID 10 array on my IBM System x3650 M3 server - four drives IBM 146GB 10K 6Gbps SAS 2.5". I bought four new drives (also 146GB 10K 6Gbps) because soon I may have problem with free space. Can I expand RAID 10 without losing data? My RAID…
user252249
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Failing drive in RAID10 array; which degraded state will be least punishing on performance?

Running on LSi 9260-16i, with 16 SAS drives (Seagate Savvio 15k.2). One drive is getting media read errors, so we're going to RMA it out. Which of these is the least performance destroying option in the meantime until the new drive gets here in a…
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Force RAID 1+0 HP Smart Array to rebuild

I have a RAID10 with status "Ready for Rebuild", but how can I force the rebuild? # hpacucli ctrl all show config Smart Array E200 in Slot 0 (Embedded) (sn: PA6C90N9SW82IU) array A (SAS, Unused Space: 0 MB) logicaldrive 1 (68.3 GB, RAID…
Tiago Cruz
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Why don't enterprise RAID controllers support migration from RAID 5 to RAID 10?

I've been doing some research on the possibility of live migration from RAID 5 to RAID 10 and I'm curious as to why it seems that most RAID controllers (particularly Dell's PERC controllers) don't support the notion of a live migration from RAID 5…
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