Re: off topic - scsi partitions swap raid
Concur with Wesley - raid on one drive is like mounting a ramdisk as /tmp - pointless because any benefits from the technique are nullified by the way you've done it. Now for: raid 0 (striping) min drives 2, reads and writes faster, no reduncancy. raid 1 min drives 3, 2/3 of your total disk space is available. Fault tolerant. raid 4 min drives 3(?) One whole drive is for parity. raid 5 min drives 3, distributed parity bits, allows one disk to fail. raid 6 min drives 4, distributed parity bits, allows for two disks to fail. I'd recommend two more 18 Gb drives for a speedy 54 Gb raid 0, or a 36 Gb raid 1 or 5. (from the guy who has been playing with raid on three 80 Mb conner scsi drives.) (next plan is to make a raid 0 or 5 over a raid0(80+80+80) + raid0(80+160) + 250 Mb drives. Need more power supplies first :) At 03:31 PM 9/20/00 -0500, you wrote: I picked up a 18 gig drive. I was planning on doing 3 6 gig partitions and raid'n two of the partitions for linux. Question is what about the swap? Would I really need to do two 6 gig, 2 128 meg, then what's left for windows? This will be my first time for raid scsi under linux, is there a nice howto that covers both? -- Criggie
Re: off topic - scsi partitions swap raid
Now for: raid 0 (striping) min drives 2, reads and writes faster, no reduncancy. raid 1 min drives 3, 2/3 of your total disk space is available. Fault tolerant. You mean minimum 2 drives, don't you? And usable space is 1/2? I believe raid 1 is also known as mirroring. -- *-^-*-^-*-^-*-^-*-^-*-^-*-^-*-^-*-^-*-^-*-^-*-^-*-^-* Michael Leone mailto:[EMAIL PROTECTED] PGP Fingerprint: 0AA8 DC47 CB63 AE3F C739 6BF9 9AB4 1EF6 5AA5 BCDF --
Re: off topic - scsi partitions swap raid
At 08:57 AM 9/21/00 -0400, you wrote: Now for: raid 0 (striping) min drives 2, reads and writes faster, no reduncancy. raid 1 min drives 3, 2/3 of your total disk space is available. Fault tolerant. You mean minimum 2 drives, don't you? And usable space is 1/2? I believe raid 1 is also known as mirroring. Yup yup - sorry about that... too much fudging on my part :) To all the geeks of the list - If you want to go on and do something, learn something new then messing with raid is a good thing to do... install bonnie and raidtools, and decide for yourself whats good and bad about raid. -- Criggie
RE: off topic - scsi partitions swap raid
-Original Message- From: Wesley Wannemacher [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 20, 2000 11:07 PM To: William Jensen; debian-user@lists.debian.org Subject: RE: off topic - scsi partitions swap raid Let me get this straight... Are you going to RAID two partitions on the same physical drive? Seems kinda absurd, RAID accomplishes one (or more) of two things: Fault-tolerance from hardware failure. Improve read/write performance, by spanning multiple physical disks. By mirroring, striping, etc. two partitions on the same physical disk you are wasting your time. Unless it is purely for practice. He might even damage his drive. It'd mean constant seeking, after all. Christian
off topic - scsi partitions swap raid
Hey scsi fans, I picked up a 18 gig drive. I was planning on doing 3 6 gig partitions and raid'n two of the partitions for linux. Question is what about the swap? Would I really need to do two 6 gig, 2 128 meg, then what's left for windows? This will be my first time for raid scsi under linux, is there a nice howto that covers both? Wm
RE: off topic - scsi partitions swap raid
Let me get this straight... Are you going to RAID two partitions on the same physical drive? Seems kinda absurd, RAID accomplishes one (or more) of two things: Fault-tolerance from hardware failure. Improve read/write performance, by spanning multiple physical disks. By mirroring, striping, etc. two partitions on the same physical disk you are wasting your time. Unless it is purely for practice. Wes Wesley Wannemacher Instructor, Network Administrator University of Northwestern Ohio http://www.unoh.edu [EMAIL PROTECTED] -Original Message- From: William Jensen [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 20, 2000 4:31 PM To: debian-user@lists.debian.org Subject: off topic - scsi partitions swap raid Hey scsi fans, I picked up a 18 gig drive. I was planning on doing 3 6 gig partitions and raid'n two of the partitions for linux. Question is what about the swap? Would I really need to do two 6 gig, 2 128 meg, then what's left for windows? This will be my first time for raid scsi under linux, is there a nice howto that covers both? Wm -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null
