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SUN StorageTek 2540 Array degraded after powering on the trays inthe wrong order - data loss???
Hello,
I have a problem to loose data on two Expansion units (StorageTek 2501) connected to the above mentioned controller - due to power up first the controller and after it the 2 trays. This is exact the reverse order it should be done - not giving the chance for the controller to recognize disks within the trays. After this step all disks in the trays were disabled. To power off the whole storage and power it up again in the right order doesn't change anything. In the CAM(Commmon Array Manager)-Software for this sort of storage there is no button to put the disk on "enabled". For me it is a bug in the controller firmware, for SUN it is an additional feature (to make the disk "online" again) which was not intended for this storage (for StorageTek 6100-series there is such a button). Well I tried a couple of things - pull out the disks (SAS disks hotpluggable) of the trays in poweroff state, and put them back again in poweron state hoping the controller will recognize them again (correct the DACstore on the disks), upgraded CAM-Software (along with appropriate firmware), nothing helps. There is nothing wrong physically neither with the disks nor with the storage - both are in good shape. Is there a suggestion which could be helpfull or is the only way to look for company specialized on restoring data from RAID systems - which would be very expensive (but the data are also)? Thanks in advance. |
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