Re: Simplifying wal_sync_method - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Simplifying wal_sync_method
Date
Msg-id 21740.1123642896@sss.pgh.pa.us
Whole thread Raw
In response to Re: Simplifying wal_sync_method  (Andrew - Supernews <andrew+nonews@supernews.com>)
Responses Re: Simplifying wal_sync_method  (mark@mark.mielke.cc)
List pgsql-hackers
Andrew - Supernews <andrew+nonews@supernews.com> writes:
>> If a SCSI drive reports write complete when it hasn't actually put the
>> bits on the platter yet, then it's simply broken.

> I guess you haven't read the spec much, then.

[ shrug... ]  I have seen that spec before: I was making a living by
implementing SCSI device drivers in the mid-80's.  I think that anyone
who uses WCE in place of tagged command queueing is not someone whose
code I would care to rely on for mission-critical applications.  TCQ
is a design that just works; WCE is someone's attempt to emulate all
the worst features of IDE.
        regards, tom lane


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