Also, do all 4 drives have to match, like SCSI? (old school brain). I know you can mix/match sometimes, but I haven't done ANY IDE RAID. ----- Original Message ----- From: "Roy Vestal" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, August 04, 2003 3:21 PM Subject: Re: hw vs sw raid (was Re: [TriLUG] RAID newbie question...)
> Crud, can you tell i have jet lag? Let me rephrase: > > IDE chain 1 = 2 drives - Master/Slaved > IDE chain 2 = 2 drives - Master/Slaved > > RAID 1 = Chain 2 mirroring Chain 1 > > Correct? > > ----- Original Message ----- > From: "Roy Vestal" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, August 04, 2003 3:18 PM > Subject: Re: hw vs sw raid (was Re: [TriLUG] RAID newbie question...) > > > > Question then, > > I haven't setup software raid on IDE. I've only done this with SCSI > so...My > > question, I have a machine that will become my "server" and I want to raid > > the IDE's, I simply setup 2 on Chain one and 2 on Chain 2 and RAID 1 them > > (Chain 2 mirroring Chain 2)? > > ----- Original Message ----- > > From: "Mike Johnson" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Monday, August 04, 2003 3:22 PM > > Subject: Re: hw vs sw raid (was Re: [TriLUG] RAID newbie question...) > > > > Jason Tower [EMAIL PROTECTED] wrote: > > > > > true story: last year i was called in to fix a system that used software > > > raid 1 on a data partition (but not the other partitions). one of the > > > disks had failed and the system would no longer boot. i slapped a > > > knoppix cd in the drive, brought it up, mounted the remaining raid > > > partition, and scp'd the data to another system. software raid 1 is a > > > good thing :-) > > > > This is an important point, that perhaps may have been missed. With HW > > RAID, you're pretty much locked in. If you HW RAID card dies (it > > sucks), you either swap in the spare that you had laying around, hope > > you can find a used one off eBay, or just kiss your data good-bye and > > head for the tapes. There is no 'standard' for HW RAID data. Every > > vendor (and oftentimes even within a vendor -- different products) has a > > different format for how they store their blocks. For instance, if you > > have a HW RAID set up with 3Ware, you cannot use one of the Promise > > (yes, they make a -true- HW IDE RAID card) if the 3Ware dies. > > > > If you're using software RAID, you can move the drives around and still > > access them, or, as Jason did, even use knoppix. > > > > So, if you're looking for cheap, decent perfomance, just go software > > RAID. There is a performance hit, but the cost and flexibility make up > > for it. > > > > Mike > > -- > > "If life hands you lemons, YOU BLOW THOSE LEMONS TO BITS WITH > > YOUR LASER CANNONS!" -- Brak > > > > GNUPG Key fingerprint = ACD2 2F2F C151 FB35 B3AF C821 89C4 DF9A 5DDD 95D1 > > GNUPG Key = http://www.enoch.org/mike/mike.pubkey.asc > > > > -- > > TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug > > TriLUG Organizational FAQ : http://trilug.org/faq/ > > TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ > > TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc > > > > > > -- > TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug > TriLUG Organizational FAQ : http://trilug.org/faq/ > TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ > TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc > > -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc
