I'm trying, rather unsuccesfully, to get FC1 AMD64 installed on a dual Opteron with an Adaptec 29320-R card.
It looks to me like Adaptec Hostraid is not supported. This is a surprise; up until now Adaptec hardware has a good track record of Linux support, going back for years.
Can someone confirm whether Adaptec hardware RAID is supported, or not. If not, what would be a good hardware RAID card to use in its place?
On Sun, Feb 01, 2004 at 02:36:37PM -0500, Sam Varshavchik wrote:
I'm trying, rather unsuccesfully, to get FC1 AMD64 installed on a dual Opteron with an Adaptec 29320-R card.
The raid features on the hardware raid are not open source supported.
It looks to me like Adaptec Hostraid is not supported. This is a surprise; up until now Adaptec hardware has a good track record of Linux support, going back for years.
The raid card issues go back years actually - AHA hostraid stuff like the IDE raid hasn't been Linux supported, smarter stuff has been well supported.
Alan Cox writes:
It looks to me like Adaptec Hostraid is not supported. This is a surprise; up until now Adaptec hardware has a good track record of Linux support, going back for years.
The raid card issues go back years actually - AHA hostraid stuff like the IDE raid hasn't been Linux supported, smarter stuff has been well supported.
Well then, so much for Adaptec…
That still leaves the question of a working SCSI hardware raid card. I'm open to suggestions. Some Googling brings up occasional reports of random glitches with software raid; so I'd still prefer a hardware raid solution.
On Sun, Feb 01, 2004 at 05:14:56PM -0500, Sam Varshavchik wrote:
The raid card issues go back years actually - AHA hostraid stuff like the IDE raid hasn't been Linux supported, smarter stuff has been well supported.
Well then, so much for Adaptec???
Adaptec hw raid stuff is supported (aacraid etc) but to be honest hardware raid is dying out. Its already basically collapsed down to two vendors and one niche vendor (Adaptec, LSI, 3ware)
That still leaves the question of a working SCSI hardware raid card. I'm open to suggestions. Some Googling brings up occasional reports of random glitches with software raid; so I'd still prefer a hardware raid solution.
I've got 3ware bits - which work nicely, and aacraid - which works pretty well although it doesnt like some of the RH kernels. You can pick up decent aacraid cards (quad channel perc2/qc aka "Obsidian") on ebay.
Alan
Alan Cox writes:
On Sun, Feb 01, 2004 at 05:14:56PM -0500, Sam Varshavchik wrote:
The raid card issues go back years actually - AHA hostraid stuff like the IDE raid hasn't been Linux supported, smarter stuff has been well supported.
Well then, so much for Adaptec???
Adaptec hw raid stuff is supported (aacraid etc) but to be honest hardware
Oh, I get it now. Adaptec's Hostraid line isn't really hardware raid, it still needs host OS support.
Well, it did look like hardware RAID at first (up until the point when I actually tried to boot Fedora). After enabling RAID, subsequent POST enumerated a single device, on the lowest SCSI ID of the two drives.
That still leaves the question of a working SCSI hardware raid card. I'm open to suggestions. Some Googling brings up occasional reports of random glitches with software raid; so I'd still prefer a hardware raid solution.
I've got 3ware bits - which work nicely, and aacraid - which works pretty well although it doesnt like some of the RH kernels. You can pick up decent aacraid cards (quad channel perc2/qc aka "Obsidian") on ebay.
I can't find SCSI stuff on 3ware.com. They look to be in the business of ATA RAID only.
Looks like my only option appears to be LSI Megaraid 320-1.
/lib/modules/2.4.22-1.2140.nptlsmp/kernel/drivers/scsi/megaraid.o
That should work..
On Sun, Feb 01, 2004 at 06:13:22PM -0500, Sam Varshavchik wrote:
I've got 3ware bits - which work nicely, and aacraid - which works pretty well although it doesnt like some of the RH kernels. You can pick up decent aacraid cards (quad channel perc2/qc aka "Obsidian") on ebay.
I can't find SCSI stuff on 3ware.com. They look to be in the business of ATA RAID only.
3ware is just SATA (that was the "niche" comment)
Alan Cox wrote:
I've got 3ware bits - which work nicely, and aacraid - which works pretty well although it doesnt like some of the RH kernels. You can pick up decent aacraid cards (quad channel perc2/qc aka "Obsidian") on ebay.
^^^^^^^
IMO aacraid driver is *far* from be stable, and it's *very bad* maintained in the standard kernel. megaraid is _safer and faster_ option.
3ware is just SATA (that was the "niche" comment)
3ware boards are *not* native SATA. They are _bridges_ based.
3ware support SATA with the help of Serial ATA bridges (chips that convert from Parallel to Serial ATA).
-- Software is like sex, it's better when it's bug free.
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On Sunday 01 February 2004 15:13, Sam Varshavchik wrote:
Looks like my only option appears to be LSI Megaraid 320-1.
/lib/modules/2.4.22-1.2140.nptlsmp/kernel/drivers/scsi/megaraid.o
Actually, the megaraid2 module will give you MUCH better performance than just megaraid. We (Pogo Linux) ship a lot of our systems using the megaraid cards (320-1 and 320-2). Megaraid2 is mucho betta!
- -- Jesse Keating RHCE (http://geek.j2solutions.net) Fedora Legacy Team (http://www.fedoralegacy.org) Mondo DevTeam (www.mondorescue.org) GPG Public Key (http://geek.j2solutions.net/jkeating.j2solutions.pub)
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Sam Varshavchik wrote:
Well then, so much for Adaptec…
That still leaves the question of a working SCSI hardware raid card. I'm open to suggestions. Some Googling brings up occasional reports of random glitches with software raid; so I'd still prefer a hardware raid solution.
How about ICP Vortex? I'm running one GDT8623RZ which seems very fast and stable.
Gruss Rainer
----- Original Message ----- From: "Sam Varshavchik"
I use LSI's 320-1 raid card in conjuction with a 5-bay SuperMicro cage. It's really flexible to configure and not that much money. In order to get LSI raid utility (megamgr) to work, you may have to roll your own kernel because RH's stock errata kernel do not come with the latest LSI drivers - for some reason. Newer LSI drivers would seem harmless to roll out, IMHO, in an errata kernel but I guess RH is playing it safe.
-eric wood
On Monday 02 February 2004 11:11, Eric Wood wrote:
I use LSI's 320-1 raid card in conjuction with a 5-bay SuperMicro cage. It's really flexible to configure and not that much money. In order to get LSI raid utility (megamgr) to work, you may have to roll your own kernel because RH's stock errata kernel do not come with the latest LSI drivers - for some reason. Newer LSI drivers would seem harmless to roll out, IMHO, in an errata kernel but I guess RH is playing it safe.
Except that LSI's driver seems slow. megaraid2 module seems to give better performance, but again megamgr doesn't work w/ megaraid2.
Once upon a time, Eric Wood eric@interplas.com said:
I use LSI's 320-1 raid card in conjuction with a 5-bay SuperMicro cage. It's really flexible to configure and not that much money. In order to get LSI raid utility (megamgr) to work, you may have to roll your own kernel because RH's stock errata kernel do not come with the latest LSI drivers - for some reason. Newer LSI drivers would seem harmless to roll out, IMHO, in an errata kernel but I guess RH is playing it safe.
I have not found it required that the kernel needs replacing. I've run the latest megamgr from LSI on RHL 8.0, RHL 9, FC1, and RHEL 3 ES "stock" kernels with no trouble (it even has a couple of extra status options that the RAID BIOS manager doesn't have).
On the subject of megaraid though: what is the difference between the megaraid and megaraid2 drivers? RH picks megaraid by default, but is there some reason I'd want to switch?
Chris Adams writes:
On the subject of megaraid though: what is the difference between the megaraid and megaraid2 drivers? RH picks megaraid by default, but is there some reason I'd want to switch?
Gee, that sounds real familiar. It wasn't that long ago when there were two Adaptec drivers. I guess Megaraid didn't want to get left behind…
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