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- From: zeke@fasttech.com (Bohdan Tashchuk)
- Newsgroups: comp.benchmarks,comp.arch.storage
- Subject: Re: Disk performance issues, was IDE vs SCSI-2 using iozone
- Message-ID: <1992Nov11.064154.17204@fasttech.com>
- Date: 11 Nov 92 06:41:54 GMT
- Article-I.D.: fasttech.1992Nov11.064154.17204
- References: <1992Nov10.170022.21624@igor.tamri.com>
- Organization: Fast Technology
- Lines: 15
-
- In <1992Nov10.170022.21624@igor.tamri.com> jbass@igor.tamri.com (John Bass) writes:
-
- >Given small transfers qualification, "Slight margin in speed" is highly
- >debatable .... The ability to do read scheduling and write placement
- >based upon knowing geometry and current head/spindle position allows for
- >30%-700% better semi-random small file I/O with the right filesystem design.
- >The SCSI abstraction hides this important performance information.
-
- I don't understand what you're saying here.
-
- All the new high performance IDE drives I've seen are zoned, and "hide" the
- actual geometry. Perhaps there's a way in IDE to ask the drive for the true
- geometry, but my understanding is that SCSI allows this as well.
-
- How is IDE better?
-