topic Re: who know this: software Raid5 will be supported in hpux os? in Operating System - HP-UX

who know this: software Raid5 will be supported in hpux os?

Merlin M. — Fri, 09 May 2003 03:09:07 GMT

who know this: software Raid5 will be supported in hpux os?

are there any further information or doc?

Re: who know this: software Raid5 will be supported in hpux os?

Steven E. Protter — Fri, 09 May 2003 03:18:50 GMT

A cut in paste from an old post.

Thanks to Sanjay
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Hi Tony,

Look at the thread below.

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B2355-90742/B2355-90742_top.html&con=/hpux/onlinedocs/B2355-90742/00/00/48-con.html&toc=/hpux/onlinedocs/B2355-90742/00/00/48-toc.html&searchterms=lvm%20stripe&queryid=20011010-061305

Look for the section, "Setting Up Disk Striping "

Hope this helps.
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There are no plans to remove this functionality. Mirror/UX is a codeword activated add in product.

SEP

Re: who know this: software Raid5 will be supported in hpux os?

S.K. Chan — Fri, 09 May 2003 03:30:59 GMT

You mean the like the SR5 (software raid5) that is available for Linux ? I don't think there's any software at all that would do Raid 5 in HP-UX. The overhead involved at the OS level to implement Raid 5 is much too complex, usually done at the hardware level (eg: 12H AutoRaid). The closest software Raid level you would get in HP-UX using LVM is Raid0/1 (ie stripping and mirroring). You can strip your disks in LVM and mirror them. That's in the doc that Steven pointed out.

Re: who know this: software Raid5 will be supported in hpux os?

Patrick Wallek — Fri, 09 May 2003 03:38:30 GMT

I believe that this actually can be done on HP-UX 11.11 (11i) with the full version of the Veritas Volume Manager softwre (VxVM). As far as I know the base VxVM that comes with 11i will not support this but I THINK that the full version will.

At this point I can't find any supporting information on HP's or Veritas' web sites, but I am pretty sure I heard or read at one time that VxVM supported software RAID 5.

Re: who know this: software Raid5 will be supported in hpux os?

Sunil Sharma_1 — Fri, 09 May 2003 04:01:21 GMT

Hi,

It's not the limitation of HPUX, it's limitation of volume manager(LVM). HP Unix LVM doesn't support raid-5 but you can use veritas Volume manager which support Raid-5.

Sunil

Re: who know this: software Raid5 will be supported in hpux os?

Leif Halvarsson_2 — Fri, 09 May 2003 05:42:01 GMT

Hi,
Veritas volume manager is a completly different product then HP-UX LVM. It support software RAID but at a cost that I think it is a better choice to buy a cheap hardware RAID box.

Re: who know this: software Raid5 will be supported in hpux os?

Balakumar M — Fri, 09 May 2003 08:57:06 GMT

Hi,
Veritas support OS level RAID 5, HP 11i support Veritas, but you need a seperate license ( as of my knowledge).

Regds,
Bala