We have it on both IBM and Imation tapes (we had first 20 tapes in initial order with library from IBM and 20 Imation tapes bought 1/2 year later). Fault tapes are mixed.
Tomas > -----Original Message----- > From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] Behalf Of > Lambelet,Rene,VEVEY,GL-CSC > Sent: Monday, June 16, 2003 3:13 PM > To: [EMAIL PROTECTED] > Subject: Re: Interesting LTO fault's symptom > > > Hi, > > we have exactly the same problem, about 2 -3 tapes / day with write error, > 2/3 of capacity. Only on Imation tapes, not on IBM ones... > > We spend our time to do MOVE DATA ! > > Reni LAMBELET > NESTEC SA > GLOBE - Global Business Excellence > Central Support Center > Information Technology > Av. Nestli 55 CH-1800 Vevey (Switzerland) > til +41 (0)21 924 35 43 fax +41 (0)21 703 30 17 local > K4-404 > mailto:[EMAIL PROTECTED] > > > -----Original Message----- > From: Toma9 Hrouda Ing. [mailto:[EMAIL PROTECTED] > Sent: Monday,16. June 2003 14:14 > To: [EMAIL PROTECTED] > Subject: Interesting LTO fault's symptom > > > Hi all, > > during last weeks I did interesting findings at one of production LTO > 3583-L18 library. There are 2 drives and both was changed past series of > media faults (one of them twice) past about 1 year of operation. We have > about 20 "historicaly touched" tapes with average 3-4 write faults. Media > faults are still repeated and my finding is all that faults were done at > 70-75% of estimated capacity (set by longterm using to 105GB, we > use client > compression) during filling the tape. It seems like all tapes > were corrupted > nearly at the same place, of course there is some diffusion > because this is > only estimated filling. Faults at these tapes are repeatedly occured at > these percents of max capacity. > > I understand when one tape has media fault repeatedly at the same > place, but > about 20 tapes? Could it mean that all tapes were corrupted by > one bad drive > at the same place, or can be reason at microcode? > > We are in contact with our IBM support to solve it, but I am interested if > anybody of you register similar phenomenon? > > Tomas
