Re: hardware raid 5 over raid 10

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: Peter E. Fry (pfry_at_swbell.net)
Date: 12/14/04 

Date: Tue, 14 Dec 2004 04:30:07 GMT

thomaslally wrote:
>
> Disk space is not a concern, performance and above all failover
> capacity are more important to us. I've seen plenty of posts about
> RAID 5 and RAID 10 (1 + 0)
>
> But, the people (such as silver Dell tech support)I was asking to are
> mostly suggesting me to use RAID 5, especially HARDWARE RAID 5 with hot
> spare which is not that slow compared to RAID 10, even for writing.
> What do you think?

  You need relatively impressive hardware for your RAID 5 to outperform
your stripe and mirror. But if resilience is paramount, why not
mirrored RAID 5? Some SCSI RAID controllers could do it, back when I
used 'em.
  For the most part writes are (or at least should be) hidden by the
system and controller caches, so I tend to look at read performance.
Oh, and the age-old question: "How fast do you want to spend?"

Peter E. Fry

Relevant Pages

  • sil 0680 RAID 1
    ... I purchased a Sil680 IDE RAID controller, and have setup a mirrored RAID ... Is there anyway to get the FreeBSD to recognize my RAID array? ...
    (freebsd-stable)
  • using Solaris Volume Manager to create a mirrored RAID 5 device?
    ... I'm wondering if it is possible to set up a mirrored RAID 5 set using ... Solaris Volume Manager (SVM). ... My thought it to create two seperate RAID 5 metadevices such as: ...
    (SunManagers)
  • Re: sil 0680 RAID 1
    ... > I purchased a Sil680 IDE RAID controller, and have setup a mirrored RAID ... > Finally, the mirroring works fine but if the ad4 disk goes wrong, the BSD ... > Is there anyway to get the FreeBSD to recognize my RAID array? ...
    (freebsd-stable)
  • going from non raid to raid
    ... I want to add another drive in a mirrored raid combination to have the luxury of reliability. ... just add the second drive on one of the other PATA channels ...
    (microsoft.public.windowsxp.help_and_support)
  • Raid/Dustin Cook (Crybaby Snitch): Stalker #6
    ... I'm going to email your ISP some of your not ... I will forward your posts (I'm sure your ISP will ... who know what this raid fool has done - but their boomerang is ... threats to Federal Agents, post threats concerning computer ...
    (alt.comp.anti-virus)