i also have seen too many occurrences of these errors. if i see the same disk two - three weeks in a row i replace the disk. overkill? perhaps, but why take the risk.
-paul
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Has anyone been noticing an unusual occurrence of medium errors (i.e unrecovered read errors) for the 72 GB FC-AL disks (X235_SCHT5073F10)? I have several recently purchased F840 filers, running ONTAP 6.2R2, with these disks in DS14 disk shelves. The disks all have the latest firmware revision (NA04). The DS14 shelf firmware is up to date as well (Rev. 11).
I've been getting about 1 medium error every week (a total of 9 so far), during the disk scrub process. The errors are on different disks, in different filers. The only common factor, so far, is the drive type. I'm finding this unusual since I've run F740s for years with medium errors being VERY infrequent (i.e. one). Is this possibly related to the drive size? The F740s had the Seagate (ST118202FC and ST318203FC) 18 GB drives.
I have pursued this with Netapp Technical Support. However, since the errors are still considered infrequent, the only suggestion I have received so far is to replace the disks that have shown errors, which might be happening shortly. I'm just wondering if anyone else is seeing the same thing.
-- "There is magic in the web" - Shakespeare (Othello, Act 3, Scene 4)