Date: Mon, 22 Apr 2002 16:15:38 -0400 From: Mike Tancsa <mike@sentex.net> To: stable@freebsd.org Subject: new ata code and vinum Message-ID: <5.1.0.14.0.20020422160043.03499a50@marble.sentex.ca>
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While putting together a new news server, I did some quick tests on some of
the new ATA hardware. So far so good in tests. It will be interesting to
see how it takes a pounding with 30Mb/s being sent to it 24hrs a day :)
Using
PIII, 1G, 1G of RAM
HighPoint RocketRAID 404 (370 chipset), ahc 2940U
-------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
ad8 1500 40395 91.5 39973 51.5 14251 18.0 28391 91.5 41257 20.4 192.0 1.1
da0 1500 17198 40.2 15052 18.0 8030 9.9 15768 50.6 15846 7.4 297.8 1.8
vinumS 1500 32865 78.5 31383 42.1 10993 15.0 24679 83.5 32473 20.8 505.4 3.4
ar0 1500 47033 88.2 43172 53.7 16090 21.2 28676 93.5 44640 24.3 296.7 1.9
vinumI 1500 47819 89.5 43188 58.6 13715 18.9 20767 69.5 32029 19.0 365.6 2.0
The the drives being
da0: <SEAGATE ST39102LW 0004> Fixed Direct Access SCSI-2 device
on
ahc0: <Adaptec 2940 Ultra SCSI adapter>
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled
da1: <SEAGATE ST39103LW 0002> Fixed Direct Access SCSI-2 device
ar1: 114483MB <ATA RAID0 array> [14594/255/63] status: READY subdisks:
0 READY ad8: 57241MB <ST360021A> [116301/16/63] at ata4-master UDMA100
1 READY ad10: 57241MB <ST360021A> [116301/16/63] at ata5-master UDMA100
ad8 was just a drive off the RocketRaid controllers, and ar0 being a stripe
of the 2 drives.
vinumI = vinum with 2 IDE drives (both on single channels)
vinumS = vinum with 2 of the SCSI drives.
---Mike
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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