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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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RAID 10 and LVM

I have just setup a new SolusVM Xen Node at my DC. I asked them to install CentOS6 with Software RAID 10 and 100GB to root then the remainder to an LVM group for Xen. All in Software RAID 10. The server has 4x1Tb drives. When I run cat /proc/mdstat…
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6 times slower disk write in RAID10 on Ubuntu 14.04 after rebuild

OS: Ubuntu 14.04 LTS Software Raid 10: 4x120Gb Intel 530 SSDs Initial tests: 1.2 GB/s Write 5.2 GB/s Read I did some tests to check if everything will go alright with a failed disk: I set as failed and removed /dev/sda partitions (2). Rebooted…
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Expand VD in Raid PERC H710, Dell R720 mini

I have purchased Dell R720 server with PERC H710 Raid Controller. Initially I have configured RAID-10 with 6 SAS 300GB Drives. Installed Win2008 R2. Raid10: After deployment I come to add 2 more 300GB to array. Now I am unable to expand these two…
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How to display/define Mirror/Stripping pairs with mdadm

I want to make a standard linux software Raid10 over 4 HDD. The server has 4HDDs, 2 pairs from different vendors in order to avoid batch problems. I want to have the mirror over two different Vendors, and then the Stripe over the mirror pairs. I…
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4096 and 8192 block size read slower than write? by using lsi 9361-8i RAID10

is it possible that 1024 and 2048 block size read speed is faster than 4096 and 8192 block? I'm using lsi 9361-8i with RAID 10 , with 8 x Kingston E50 250G. result: 1024 = Write: 2,251 MB/s Read: 2,625 MB/s 2048 = Write: 2,141 MB/s Read:…
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SQL Server 2012 RAID Setup and Performance

At my company we are in the process of setting up a new SQL Server 2012 box. We have 6 physical drives with 3,000 gigs each. We are considering two different RAID configurations and are wondering which would be faster: With 6 physical drives with…
programmer
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Indepedent pairs of RAID 1 is superior to RAID 10

I am rather new to databases. I was reading up on RAID Storage and it seems that the consensus is that RAID 10 is RAID 10 is best is terms of performance and redundancy However at the end article , the author went on to state Independent pairs…
Computernerd
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RAID10 Without BBU, With UPS

My datacenter says that each rack has primary and backup power on each rack. I assume this means there is a UPS for each server. Therefore, do I have any need of getting a BBU for the following setup? Intel Cherry 520 SSD x 4 RAID 10 LSI-9260 with…
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Growing a hardware RAID-10 array

I am interested how to grow a RAID 10 array on Windows SBS 2011 machine? Basically I have added two additional disks, expanded array and now I want to grow my c: filesystem to take advantage of new space? It is hardware RAID, Controller is Smart…
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How do I check if server really has RAID 10 enabled?

I have a dedicated server with 4 hdd and RAID 10, with Cent OS 6.4 How can I check if RAID is really enabled. I'm in doubt because on another server with RAID 10 enabled, I can see in /dev sg0 sg1 sg2 sg3 sg4, and with the command smartctl -d scsi…
user38219
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Expand Raid 10 set on MegaRAID LSI 9261-8i

I have an existing Raid 10 drive with 8 drives. 4 in each span. I can't figure out how to expand the set by adding two more drives, one to each span. I'm using the MegaCLI command line tool. I would like to keep the data on the drives if possible.…
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Increase the size of software RAID 10

Currently I have 8 disks each of size 32G forming a RAID 10. Now, I want to increase the size of this RAID by adding extra disks. This is a production device so there is already critical data in the RAID. The filesystem is XFS. Is there any way to…
pradeepchhetri
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What RAID policies should be used for a XenServer host?

I have a server with a PERC6/i card and a RAID-10 array running XenServer 6.1 with 6x VMs, one of which is SBS 2008 and the rest are a mix of file server, video-on-demand and SQL database server. The current read/write/cache policies are as…
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Is it possible to modify the raid volumes once the OS is installed? RAID10 Windows Server 2008

My problem is the following: I've rented a dedicated server with RAID10, but they have set only one volume in raid -> Disk0. The Disk0 has 12 Tbs but with MBR i can only use the OS partition 100Gb and another partition of 2Tb. The remaining 10Tb…
SaintJob 2.0
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Server with RAID10 basic partition management

First of all i must say that i'm totally noob to server management. I've rented a server with 8x3TB HDs and RAID10 installed. In the Disk Management section (I use windows server) i see two unallocated blocks of 2Tbs and 10Tbs each one. I guess this…
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