Date: Thu, 23 Oct 1997 14:54:07 +0300 From: Eugene Vedistchev <scaner@belabm.by> To: Palle Girgensohn <girgen@partitur.se> Cc: hardware@FreeBSD.ORG Subject: Re: Compaq Smart-2/P array controller supported? Message-ID: <344F3ADF.5D164C89@belabm.by> References: <344DC95C.5DABBB15@partitur.se>
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Hello Look below: > From: Mark Dawson <md@dcs.qmw.ac.uk> > Subject: Compaq Smart-2/P RAID controller results > > We have recently bought a Compaq ProLiant 800 200MHz PPRO and had a > chance to try out the SMART-2/P controller with six 4.3GB wide-ultra > 1" disks (H RAID5 and H RAID0 below) under 2.2-RELEASE using our > locally developed driver (<URL:http://www.dcs.qmw.ac.uk/~md/ida>). > > Below is a comparison of the performance of the Compaq SMART-2/P > controller with: the older Compaq SMART controller (M RAID5); a CCD of > four legacy Wren-VII disks (I CCD); a logical disk of four older > fast-narrow 1GB disks (I RAID5); a striped configuration of the six > 4.3GB disks (H RAID0); and an internal 4.3GB wide scsi disk. > > BONNIE RESULTS-----Sequential Output-------- ---Sequential Input-- --Random-- > -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- > Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU > I CCD 300 1118 97.8 2031 13.1 1195 12.1 1126 97.8 3068 17.5 46.8 3.4 > M RAID5 100 3427 82.9 3356 23.3 2265 18.0 4168 90.1 5649 25.2 181.5 8.9 > I RAID5 300 1161 99.0 1691 13.6 1688 18.0 1157 98.8 6582 37.8 43.7 2.7 > H RAID5 300 5542 49.2 5328 11.9 4826 15.4 9222 86.9 16673 34.4 115.1 2.6 > H RAID0 300 11615 98.3 15231 36.9 9096 27.1 10532 98.0 16073 30.7 131.6 2.6 > H disk 300 3199 28.0 3277 6.5 1726 4.4 6666 61.0 6271 7.1 100.5 1.6 > > where RAID5 = distributed data guarding, > RAID0 = no fault tolerance striped (e.g. CCD) > and the configurations are: > > I = Compaq ProSignia 300 5/120 16MB (IRON) 2.2-RELEASE > I RAID5 = 4 x 1GB fast-narrow = 3GB RAID-5 logical disk on SMART-2/P > I CCD = 4 x 1GB Wren-VIIs = 4GB concatenated disk on NCR 53c810 scsi > (32 block interleave) > > H = Compaq ProLiant 800 6/200 96MB (HOTPOINT) 2.2-RELEASE > H RAID5 = 6 x 4.3GB wide-ultra = 20GB RAID-5 logical disk on SMART-2/P > H RAID0 = 6 x 4.3GB wide-ultra = 24GB RAID-0 logical disk on SMART-2/P > H disk = 1 x 4.3GB wide-ultra = 4GB disk on NCR 53c875 wide scsi > > [from 8th October 1995] > M = Compaq ProLiant 1500 5/120 80MB (MANGLE) 2.1-STABLE > M RAID5 = 5 x 4.3GB = 16GB RAID-5 logical disk on SMART (old controller) > > The figures show quite a hit in write performance with RAID5 versus RAID0 > but otherwise show that the SMART-2/P is a considerable improvement over > Compaq's previous controller. > > Mark Palle Girgensohn wrote: > > Compaq Smart-2/P array controller. > > Is it supported? In 2.2.5 or stable? > > Regards, > Palle
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