Problems with the Fujitsu M2372K drive

[Tony Tran]

We just recently added to our Sun server another Fujitsu disk (M2372K),
{from a local third party vendor} and seemed to run into a lot of 
problems with this new drive.

During our first try to format the disk, our Sun 3.4 format program
failed to read the bad spot list, therefore we had to enter about 150 bad
spots in manually, which took us more than 1 hour. Nevertheless, the disk 
still went bad, and this is what it shows on the console:

xy2d: read retry (hard ecc error) -- blk #267865, abs blk #267865
xy2d: read retry (hard ecc error) -- blk #267865, abs blk #267865
		.......

So we decided to replace the disk with a brand new one. After going thru
another 9 hours to format the disk, we again see the following error message:

Mar  6 16:30
xy2d: write retry (header not found) -- blk #25727, abs blk #25727
xy2d: write retry (header not found) -- blk #25727, abs blk #25727
xy2d: write failed (header not found) -- blk #25727, abs blk #25727
xy2d: read retry (header not found) -- blk #25727, abs blk #25727
xy2d: read retry (header not found) -- blk #25727, abs blk #25727
xy2d: read failed (header not found) -- blk #25727, abs blk #25727

 This is a SUN 3/160 running SUN OS 3.4. It has a Xylogic 451 controller,
 and 2 other regular Eagles (M2351) on it. 

 While we gained about 680 MB on disk space, we noticed that the system
 performance went down drastically.

 My question are: 

 1. Is it reasonable to insist that the Fujitsu drive comes formatted 
    from the vendor?
 2. Is the magic number = 2 drives for each Xylogic controller?
    Is the Xylogics 753 any better in handling more disk drives?
 3. I heard that the Cyprico 32220 comes with some on like disk formatter.
    Is it really a better substitute than the Xylogic 753 ?

 Any help on the above would be appreciated.

 Tony Tran
 Versatec Corp.
-- 
UUCP: {sun,ames,pyramid}!versatc!tran  	Tony Tran
Versatec, 2805 Bowers Avenue, Santa Clara, Calif 95051 (408)982-4317
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