Comments on: RAID

By: s

Wed, 27 Jan 2010 21:59:11 +0000

In simplistic terms:

1. Replace failed drive with good drive

By: Mark Davis

Mark Davis — Tue, 26 Jan 2010 02:32:19 +0000

Raid 5 only requires a minimum of 3 disks. With 4 disks, you will only loose 1/4 of your HD space. As for file size, that is upto whatever file system you put on the volume created by you Raid array.

By: Kingsley

Kingsley — Fri, 04 Dec 2009 22:59:56 +0000

I need to deal with very large data set with typical file size of 1-7gb, hundreds of them, in a workstation. Both read and write. I can only fit 4 disks for RAID purpose, what’s the best option? Would Raid 3 be better than Raid10? It seems like Raid 3 can write in parallel in more than 1/2 of the total number of disks and lose only 1/4 of total storage.

By: arun

arun — Sun, 29 Nov 2009 17:00:50 +0000

By: Ramesh

Ramesh — Mon, 23 Nov 2009 07:21:55 +0000

Raid5 5disc failure how to recovery data pl explain

By: Russell Mujee

Russell Mujee — Wed, 11 Nov 2009 12:59:54 +0000

I have used RAID 6 in one of my server. This has allowed me to create two hot swap disks. I deceided to use it on case scenarios such as: if two active disks fail at the same time. or if two disks will fail at diferent intervals but the chance of getting a new replacement is in the process and has not arrived yet. Featured in a NEC server rack mount.

By: Mark Davis

Mark Davis — Thu, 20 Aug 2009 04:05:47 +0000

What you describe as RAID 3 is really RAID 4.

RAID 2 = bit level striping
RAID 3 = byte level striping
RAID 4 = block level striping
RAID 5 = block level striping with distributed parity

By: Bob Twain

Bob Twain — Fri, 12 Jun 2009 20:17:05 +0000

I have head that the government is now doing work on RAID -17 (yes, negative 17). This technology is based on tensors and promises to put all other RAID to shame.

By: Pinar

Pinar — Mon, 17 Nov 2008 23:36:38 +0000

Actually you can have RAID 1+0 with only two disks.

By: max

max — Tue, 21 Aug 2007 12:57:44 +0000

you can get 1+0 on two disk using two partitions. this can be done with software raid. dunno if HW controllers can support this.