Re: USB disk not completely configured

[henning petersen <henning.petersen%t-online.de@localhost>]

Am 01.11.2014 um 14:55 schrieb Greg Troxel:
> 
> Thomas Klausner <tk%giga.or.at@localhost> writes:
> 
>> When I plug in a new disk I bought recently, I get:
>>
>> umass1 at uhub4 port 8 configuration 1 interface 0
>> umass1: Samsung D3 Station, rev 2.10/2.02, addr 5
>> umass1: using SCSI over Bulk-Only
>> scsibus1 at umass1: 2 targets, 1 lun per target
>> inquire: addlen=71, not retrying
>> sd5 at scsibus1 target 0 lun 0: <Samsung, D3 Station, 0202> disk fixed
>> sd5(umass1:0:0:0):  Check Condition on CDB: 0x00 00 00 00 00 00
>>     SENSE KEY:  Not Ready
>>      ASC/ASCQ:  Logical Unit Is in Process Of Becoming Ready
>>
>> sd5: drive offline
>> sd5: unable to open device, error = 5
>> sd5: fabricating a geometry
>>
>> but then I get no further devices.
>>
>> I was able to add a GPT table, and "gpt list /dev/sd5" works, so I can
>> manually create wedges using dkctl. It'd be nicer if it was done
>> automatically, like usual, though...
> 
> I wonder if the disk is returning a "Not Ready" to some operation, which
> should be interpreted as "wait a few seconds and try again" rather than
> erroring out.  You could try putting in a wait loop to retry every 1s
> for 30s, or something like that.   I wonder if this disk returns this
> until it's fully spun up, rather than just haing the first operation
> that actually needs it spun up take a long time.
> 

I think this comming from patch for PR/49054 (scsipi_base.c).