300 GB disk as hot spare for 146 gb disk in stk 6140

Hi,
Does any body know this for sure?
Customer plans to buy new tray with 300 gb fc disks.
Also hey have old tray with 146 gb disks.
They want to assign two 300 gb disks as hot spares for old 146 gb and for new 300gb disks.
Will it work?
If you can confirm that this works, does this depends on firmware revision or CAM version or something else?
Thanks in advance!

I have not seen this work but It's my understanding that hot spares are "array spares" and that a larger drive can be a spare for a smaller drive.
Glen

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    Volume based iSCSI results          17m25.932s total write time, 9.8 MB/sec
    XXd0s0 whole disk iscsi                2m13.468s total write time, 77 MB/sec
    I made the test configuration as zpool->volume->iSCSI->efi-part according to the following instructions:
    www tokiwinter com / solaris-cluster-4-1-part-two-iSCSI-quorum-server-and-cluster-software-installation /
    I made the volume 5% smaller than the available space to account for metadata, spare blocks, ect.
    I did a little digging into my current partition tables and there is corruption/weirdness in in both the XXXd0 and XXd0s0 cases.
    The XXXd0s0 configuration has not seen a lot of reads or writes, that why it still appears to be ok.
    I’m convinced that in 6 month, it will be in just as bad condition as the XXXd0 configuration.
    prtvtoc:ing one of the XXXd0 disks shows:
    *                          First     Sector    Last
    * Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
           0     24    00        256    524288    524543
           1      4    00     524544 286198368 286722911
           8     11    00  286722912     16384 286739295
          24    255    1030          0 9007199254741057538 9007199254741057537
          28    255    6332  3256158825667702840 3906306445338542081 7162465271006244920
          29    255    3038  3559300795614704941 18143602103762549516 3256158825667702840
    I was impressed by partition 24 being  4194304000.00 TB or 4 zettabyte disk size.  That’s a great compression ratio for a 146G drive
    Has anyone in the community successfully used iSCSI without zpools and volumes on the physical disk?
    If you have, please share your results and configuration. I’ve hit the wall with this one.
    -Mikko

  • When to replace drives, and when does the hot-spare kick in?

    Here's the situation: got an e-mail today from the RAID (no it wasn't a love letter), which alerted me to a ten-times repeated ERROR: 0x10, STATUS: 0x51 on drive 8
    I then proceded to check through the log, and found from a while back (mysteriously I never received an e-mail even though it said it had sent one!) ERROR: 0x40, STATUS: 0x51
    which were however only single/double incidents, not repeated 10 times like this latest error.
    Despite these errors, the drives show up as "OK" in RAID Admin, and the hot spare drives seem not to have been activated.
    The question is now, should I get these drives replaced ASAP, or if the RAID lists the drives as OK is everything fine and dandy? (not sure how to take a "non-recoverable error 0x40" and reconcile that with a drive status of OK)
    Ronald

    Nobody's got any answers? Bummer! The Apple manual says really nothing useful about how to aAsSsSeEsSsS error messages and when to replace drives, etc.
    It's nice to sell to people that a RAID-5 will keep the data safe, but that only works if one knows what to make of the error messages.
    I shouldn't have to spend another $1k for a tech support contract, just to learn what things mean that should be explained in the tech docs...
    Ronald
    PS: will someone tell Apple's PC watchdog that aAsSsSeEsSsS has nothing to do with aAsSsS? AaSsSsEeSsSsMmEeNnTt is a technical term, yet it wouldn't want to let me post the message because it contained aAsSsSeEsSsS! What's next? Soon we can't use the word RAID anymore, because it's refers to undesirable violence...
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