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- Newsgroups: comp.sys.sun.hardware
- Path: sparky!uunet!haven.umd.edu!purdue!mentor.cc.purdue.edu!noose.ecn.purdue.edu!mischief.ecn.purdue.edu!curt
- From: curt@mischief.ecn.purdue.edu (Curt Freeland)
- Subject: Quantum 210S or Sun format oddity?
- Message-ID: <curt.727717554@mischief.ecn.purdue.edu>
- Summary: weird failure mode, or format only touches the the drive cache?
- Keywords: can we or can't we write drive platters?
- Sender: news@noose.ecn.purdue.edu (USENET news)
- Organization: Purdue University Engineering Computer Network
- Date: 22 Jan 93 15:45:54 GMT
- Lines: 31
-
- We have a Quantum 210S that came out of a SparcStation 1+. The reported
- failure was that the drive could not be written. When the drive was
- connected to another system and we used the format program's "analyze"
- section, things seemed to be fine. We could use refresh, or compare,
- and the drive passed every pass of surface analysis we threw it's way.
- When we tried to interrupt out of the analysis, the drive complained
- that it had a hard error trying to write the label. When we tried to
- format the drive, it complained that it could not access some huge
- cylinder number.
-
- Just for kicks, I tried a newfs on the drive, and that failed on every
- partition with a write error. Then I tried to fsck the drive, and lo
- and behold, the filesystem was still there!
-
- I have poked around in the format program enough to know I don't trust it
- as far as I can throw it, but now it has me really worried. How on earth
- could the pattern analysis passes complete without error, and the filesystem
- remain intact? I wrote several random patterns on the drive (or so I
- thought), but afterward, the filesystem is still intact. Has Sun supplied
- a format that writes/reads the drive's cache, but never checks the platters?
- Seems to be the case for this particular drive.
-
- Any net.wisdom would be appreciated.
-
- Thanks
- --curt
- --
- Curt Freeland
- Manager, Systems Engineering
- Purdue University Engineering Computer Network
- (curt@ecn.purdue.edu) (317) 494-3715
-