On 18/02/16 21:24, Kern Sibbald wrote:
> Hello Alan,
>
> From what I have heard many times, "tapeinfo" can do a scsi clear
> command (at least in some cases).
I've never seen this. Do you have a source? It's supposed to be a simple
interrogator.
> Until that is disproven, I cannot consider adding it to mtx-changer as
> a scsi clear is rather catastrophic to an autohanger in a
> multi-tasking, multi-processing environment.
>
Tapeinfo is one of the easier ways to get a "ready/not ready" result,
however it should be possible to get the same data with one of the more
general-purpose sg3 tools
Issuing commands to a changer if it's not in a state to receive them
results in aborted jobs and messed up backups, so checking for ready
before continuing makes sense.
(Ideally this should be done with loaderinfo, but I can't see ready/not
ready results with that tool)
> Best regards,
> Kern
>
> On 02/18/2016 11:08 PM, Alan Brown wrote:
>> On 18/02/16 07:48, Kern Sibbald wrote:
>>> I can imagine several possible problems:
>>
>> So can I. Under normal circumstances this error is what you see if a
>> physical tape library is not ready or offline.
>>
>> I submitted some patches to Baculasystems for the mtx-changer script a
>> few months back which test changer readiness before continuing with any
>> load/unload commands. These may or may not make it into release
>> versions.
>>
>> What does " tapeinfo -f /dev/scsi/changer/c4t5002188108A05117d0 "
>> return?
>>
>>
>>>
>>> 1. You may be using the tape drive rather than scsi the control
>>> channel.
>>>
>>> 2. VTLs do not always emulate hardware correctly.
>>>
>>> 3. You may be using a scsi control channel that points to something
>>> other than an autochanger.
>>>
>>> Best regards,
>>> Kern
>>>
>>> On 02/18/2016 02:55 PM, bubblemouth wrote:
>>>> Hi All,
>>>> Good day,
>>>> I have a problem using MTX Tape Changer, I failed to unload the tape
>>>> from drive,
>>>> I'm using VTL (data domain) as library, MTX as tape changer, and
>>>> solaris as the OS,
>>>> This is the error message when I try to unload the tape :
>>>>
>>>> -bash-3.2$ /usr/local/sbin/mtx -f
>>>> /dev/scsi/changer/c4t5002188108A05117d0 unload 5 0
>>>> Unloading drive 0 into Storage Element 5...mtx: Request Sense: Long
>>>> Report=yes
>>>> mtx: Request Sense: Valid Residual=no
>>>> mtx: Request Sense: Error Code=70 (Current)
>>>> mtx: Request Sense: Sense Key=Illegal Request
>>>> mtx: Request Sense: FileMark=no
>>>> mtx: Request Sense: EOM=no
>>>> mtx: Request Sense: ILI=no
>>>> mtx: Request Sense: Additional Sense Code = 53
>>>> mtx: Request Sense: Additional Sense Qualifier = 03
>>>> mtx: Request Sense: BPV=no
>>>> mtx: Request Sense: Error in CDB=no
>>>> mtx: Request Sense: SKSV=no
>>>> MOVE MEDIUM from Element Address 257 to 1029 Failed
>>>>
>>>> I already search on google about this error code (ASC & ASCQ), but
>>>> find nothing,
>>>>
>>>> Can you give me something about this error ?
>>>>
>>>> Really appreciate,
>>>>
>>>> Regards,
>>>>
>>>> +----------------------------------------------------------------------
>>>>
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>>>>
>>>>
>>>>
>>>>
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