Date: 23 Jul 1999 06:06:03 -0000 From: Yusuf Goolamabbas <yusufg@outblaze.com> To: freebsd-scsi@freebsd.org Cc: freebsd-stable@freebsd.org Subject: Postmark results with DPT RAID-5 Message-ID: <19990723060603.30708.qmail@yusufg.portal2.com>
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Hi, I am trying to stress test a DPT RAID controller DPT SmartRaid Ultra PM3334UW (Is there any standard mechanism or a methodology available for this). Any way, I am using the benchmark tool "Postmark" written by Network Appliance which is available via the URL http://www.netapp.com/technology/level3/3022.html. Here's the config of my NFS server running 3.2-stable from a few days ago PII 333 256mb ram Scsi 9 gig HDD Adaptec 2940UW scsi card. Intel Etherexpress 10/100 Mbps NIC DPT SmartRaid Ultra PM3334UW --> 6 x 18.6 Seagate Cheatah running RAID 5 The NFS client machine also running 3.2-stable from a few days PII 333 256mb ram Scsi 9 gig HDD Adaptec 2940UW scsi card. Intel Etherexpress 10/100 NIC nfs mount options: soft,rw Machines are connected via a 100 Mbps switch This is the postmark results for NFS (1000 initial files and 50,000 transactions). The 90GB filesystem mounted NFS has softupdated enabled on it Time: 520 seconds total 513 seconds of transactions (97 per second) Files: 25739 created (49 per second) Creation alone: 1000 files (166 per second) Mixed with transactions: 24739 files (48 per second) 25145 read (49 per second) 24602 appended (47 per second) 25739 deleted (49 per second) Deletion alone: 478 files (478 per second) Mixed with transactions: 25261 files (49 per second) Data: 160.78 megabytes read (309.20 kilobytes per second) 164.40 megabytes written (316.15 kilobytes per second) I also ran the benchmark on a soft-update local filesystem on the NFS client and these are the results Time: 187 seconds total 187 seconds of transactions (267 per second) Files: 25739 created (137 per second) Creation alone: 1000 files (1000 per second) Mixed with transactions: 24739 files (132 per second) 25145 read (134 per second) 24602 appended (131 per second) 25739 deleted (137 per second) Deletion alone: 478 files (478 per second) Mixed with transactions: 25261 files (135 per second) Data: 160.78 megabytes read (859.79 kilobytes per second) 164.40 megabytes written (879.12 kilobytes per second) If somebody else can also share their results using the "postmark" tool. I would appreciate it. Just want to get a feel if these numbers are good. I am planning to evaluate the Mylex DAC960SX SCSI-SCSI RAID also and shall post the numbers once I get the card Also, is there a way via camcontrol to simulate a disk failure so I can test RAID reconstruction Cheers, Yusuf -- Yusuf Goolamabbas yusufg@outblaze.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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