Adding disks that are not ready, format in progress.
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I'm seeing some odd behavior when adding a disk to the system that is undergoing some low level formatting operations preventing i/os. Until the format operation is complete on this device, it returns a sense key 0x02, ASC: 0x04 ASCQ: 0x04, which I think means NOT READY, FORMAT IN PROGRESS. I see the kernel hitting the device with this CDB over and over and over at a rate of about 160Hz. 28 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 I'm guessing it's trying to read the partition table. It doesn't back off, but just keeps on trying. Eventually (after ~20 mins, but maybe longer depending on device size) the format on the device completes, and then the i/o's proceed, the disk is added, and all is happiness. During all this time, the process which initiated the device rescan is blocked. Is what's described above expected behavior? -- steve -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html