Have you looked at you 10K SCSI drive?
While preparing a Proliant 8500 for sale, I notice that one of the drives
was a UW-3 drive, which actually surprised me. {I didn't think that I had any UW-3 drives!} So, I started looking at all my 10K RPM drives. About 33% of the 9.1 GB drives are UW-3 About 50% of the 4.3 GB drives are UW-3 For those who have a quantity of 10K drives: Is this "Normal" ? Relating to this: Will one have any performance increase with a UW-3 drive vs. UW drive with an 320x controller? Will one have any performance increase with a UW-3 drive vs. UW drive with *ANY* "slower" (non-5xxx) controller? Should I (do I need to) run the tests my self to determine any perf differences? Note: This is only true of the "low profile" class drives, not the "1/2" height drives. The larger drives are all -- "UW". Dan French bios {underscore} hack {at} hotmail {dot} com |
do you truely mean Ultra3 or UltraWideSCSI3, or WideUltraScsi3 ? Ultra3 and
U160 are synonimous with eachother. If these are the newstyle trays, then they are at the very least, ultra2 or as you say, ultra3. unless the different speeds are used together in the same raid volumes, they can coexist on the same controller and not affect eachother. That is, you can have a R1 volume using 2 4.3's, and an R5 volume using 4 9.1's, and they will operate at different speeds. That is interesting. Double check the spare or option part numbers just to be sure. the labling has historically been a little on the confusing side. LC "Dan" . spamcop.net wrote in message ... While preparing a Proliant 8500 for sale, I notice that one of the drives was a UW-3 drive, which actually surprised me. {I didn't think that I had any UW-3 drives!} So, I started looking at all my 10K RPM drives. About 33% of the 9.1 GB drives are UW-3 About 50% of the 4.3 GB drives are UW-3 For those who have a quantity of 10K drives: Is this "Normal" ? Relating to this: Will one have any performance increase with a UW-3 drive vs. UW drive with an 320x controller? Will one have any performance increase with a UW-3 drive vs. UW drive with *ANY* "slower" (non-5xxx) controller? Should I (do I need to) run the tests my self to determine any perf differences? Note: This is only true of the "low profile" class drives, not the "1/2" height drives. The larger drives are all -- "UW". Dan French bios {underscore} hack {at} hotmail {dot} com |
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