Re: Configuring combination of RAID-1 RAID-5

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 31 Jan 2006, Enrique Garcia Briones wrote:

> Hi,
>
> Let me introduce myself.
>
> I'm newbie in linux and in RAID over linux, I have configured a RAID-0 in a
> NetBSD 2.0 BOX. so, now let me explain what I'm trying to do,
>
> Antecedents/Equipment:
>
> I have a Sparc 420 with 4 processors and 4 Gb in RAM, two SCSI SEAGATE
> internal hard disk with an array of 12 hard disks (Storedge 1000).
>
> What we want to have:
>
> We installed Debian Linux (I think it is 3.1 with kernel 2.4), and we want
> to have the following configuration:
>
> 1 System Harddisk
> 1 RAID-1 Mirror Hard Drive
> 12 Hard drives in RAID-5, 10 working and 2 as spare disks.
>
> I have read the setting-up for the raid-5 and 1, but I would like to ask you
> if I can set-up a combined RAID configuration as mentioned above, since all
> the examples I found upto now just talk of one RAD configuration, besides
> this, I would like to ask you that if the configuration I want to have is
> STRONG enough for the quantity of disk in the box, or if there must be any
> other considerations to have.

Wow. an A1000. Ancient, but probably still OK. I'm not sure if there are
any management utilities for them that'll run under Linux - I've only ever
seen 2 of these and they seem to be able to run RAID themselves - might be
faster, but the ones I had were slow anyway - maybe you can re-configure
them to just look like 12 disks and let Linux do the RAID on them...

Heres my suggestion:

Install a 2.6 kernel.

Partition both internal disks identically, then then combine all the
partitions with RAID-1. Boot off RAID-1, if you can - I'm not up on the
SLILO/whatever boot loaders for Sparc though.

Configure the 12 external disks using RAID-6. You'll get one disk more
worth of storage that way and still be able to sustain a 2 disk failure.

Gordon

-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux