dal@gcm (Dan Lorenzini) (05/16/89)
We have about 15 Hitachi DK815-10 (892 MB) disk drives attached to six servers: 2 3/180's, 3 3/280's and a 4/280. Since we tend to reconfigure our systems frequently, we sometimes move a drive from one machine to another (for instance, we will format a drive on one machine, and install it in anther, to reduce downtime on a production machine). We never had problems with this, but since we upgraded our XY451's to XY7053 (a.k.a. SMD-4) controllers, sometimes this procedure causes the newly-installed drive to have errors on tracks 0 and 1. The symptoms are that fsck cannot read block 16, and when format is used in "analyze" mode it maps all the sectors in tracks 0 and 1 out to the spare tracks. Although the disk is usable this way, it results in inefficiencies in accessing files on the root partition. Also, a full reformat using the original defect list works and the problem goes away. Has anyone noticed this or a similar problem for this configuation? This has happened to three different drives in the last month. Any help you can give would be greatly appreciated. Thanks. Dan Lorenzini Greenwich Capital Markets 203-625-2779 dal@gcm.com (UUCP: sun!sunrise!norwalk!gcm!dal)