Hello, I recently got a synology DS1512+ NAS and configured it as an iSCSI target. I had no problem with the configuration nor with getting it to connect, login and mount the drive. The problem is whats showing up in my system logs:
Apr 8 00:42:43 mythbox kernel: [564210.444354] sd 17:0:0:0: [sdd] Apr 8 00:42:43 mythbox kernel: [564210.444359] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Apr 8 00:42:43 mythbox kernel: [564210.444362] sd 17:0:0:0: [sdd] Apr 8 00:42:43 mythbox kernel: [564210.444364] Sense Key : Illegal Request [current] Apr 8 00:42:43 mythbox kernel: [564210.444368] sd 17:0:0:0: [sdd] Apr 8 00:42:43 mythbox kernel: [564210.444371] Add. Sense: No additional sense information Apr 8 00:42:43 mythbox kernel: [564210.444373] sd 17:0:0:0: [sdd] CDB: Apr 8 00:42:43 mythbox kernel: [564210.444375] Write Same(10): 41 00 44 c0 21 00 00 08 00 00 Apr 8 00:42:43 mythbox kernel: [564210.444383] end_request: I/O error, dev sdd, sector 1153442048 Apr 8 00:42:43 mythbox kernel: [564210.444468] sdd1: WRITE SAME failed. Manually zeroing. The NAS appears to work fine. The performance is good, its fully accessable etc but the kernel is filling my logs with this adding these 10 lines every few seconds. I did notice this only appears to be an issue when the target is using ext4 as the filesystem. As I understand it WRITE SAME is an optional command to improve performance not supported by every device. Is it possible to disable its use, or at the very least, stop the kernel/driver from filling the logs with these messages? Thanks. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at http://groups.google.com/group/open-iscsi?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
