The Adaptec ATA-RAID 2400 supports RAID 5. I think Promise also has an ATA RAID card that supports RAID 5.
-----Original Message----- From: Mike & Tracy Holt <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Date: Mon, 26 Nov 2001 17:54:35 -0800 Subject: Re: [expert] Promise Fastrak 100 lite - anyone? civileme wrote: <snip> > OK let's look at the software RAIDs > > "Hardware " Cards Linux Software RAID > > Extents 1 >16 > RAID Types 0, 1 0+1 0,1,4,5 > Identical drives Yes Irrelevant > Volume mgr No Volumes can be pieces of > up to 16 drives > Setup at install No, requires kernel mods Yes > Cost $30-100 extra Your time > > Journaling filesystems will work with both. <snip> You DO NOT have to have identical drives to use ide raid cards. If you expect to create a RAID array with either hardware OR software, you calculate based on the smallest drive in the array. You can have 4 drives consisting of a 10GB, a 15GB and two 20GB and RAID 0 will yield you 40GB total while RAID 1 will yield 20GB. Obviously not the most effecient setup with EITHER type of RAID, but it will work. Check out this link: http://dukeofurl.dhs.org/reviews/misc/promisehowto/2.shtml I would also add that RAID controlled by the operating system (doesn't matter which one you choose WindowsNT which also has a softRAID or Linux), will NEVER be as fast or efficient as hardware (even "semi-hardware" products as the promise ide cards). Mike > WinRAIDs, anyone? I really wouldn't compare to Winmodems as they are DESIGNED to work only with Windows - that's a little misleading when comparing to the RAID card which DOES offer linux drivers. > > Civileme > -- Mike & Tracy Holt \|||/ Kirkland, WA (o o) [EMAIL PROTECTED] ----o00--(_)--00o---- www.holt-tech.net
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