Re: question about scsiSN parameter

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Jose,

On Fri, 2012-10-26 at 10:46 +0200, JOSE wrote:
> We tried to write to this file but we can't save the changes. The file 
> isn't writeable
> 

Please don't top-post, as it makes responses harder to read..

FYI, this topic was discussed on the list recently here:

http://comments.gmane.org/gmane.linux.scsi.target.devel/2703

The vpd_unit_serial configfs attribute for EVPD=0x80 is in fact
writeable and saved across target restart, but what is returned by
EVPD=0x83 device identifier (which is what ESX uses for SCSI world-wide
naming) is not writeable because SPC defines a specific format this
value needs to be.

Thus far I've not heard a good reason for exposing configurable
EVPD=0x83 data to configfs.  However, note that vpd_unit_serial is
currently used to build up the VENDOR SPECIFIC areas of EVPD=0x83 device
identifier to ensure world-wide uniqueness.

--nab

--
To unsubscribe from this list: send the line "unsubscribe target-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux SCSI]     [Kernel Newbies]     [Linux SCSI Target Infrastructure]     [Share Photos]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Device Mapper]

  Powered by Linux