EMC AX100i Release Notes - Page 12

Fixed problems Problem AX100SC, AX100SCi, AX100, AX100i - If the PSM LUN takes a checksum error while a single drive is degraded, then the storage system does not recover by using the third drive of the 3-way mirror.(130357) AX100SC, AX100SCi, AX100, AX100i - There are cases where a checksum error that is detected as part of a backfill pre-read on an MR3 will not be fixed. This can lead to "unexpected" checksum errors and sector reconstructed errors. (130360) AX100SC, AX100SCi, AX100, AX100i - Invalid event log messages are displayed due to memory corruption. The messages in question were Rebuild complete and Rebuild Aborted. (130418) AX100SC, AX100SCi, AX100, AX100i - A hot spare faulted while it was swapped in for a failed drive. A dual-SP panic occurred as a result of unbinding the hot spare while it was faulted. (130440) AX100SC, AX100SCi, AX100, AX100i - Rebuild not started from 0% after drive swapped. (130681) AX100SC, AX100SCi, AX100, AX100i - CMI does not specify "physically contiguous" when allocating memory, which causes DMA problems in iSCSI storage systems, and a storage-system panic can result within moments of being booted. (130897) AX100SC, AX100SCi, AX100, AX100i - Drive media errors can lead to PSM timeout panic. (129472) AX100SC, AX100SCi, AX100, AX100i - Addition of drive support for Short Stroke 250GB Hitatchi Kirufune II. Details Fixed in version: 02.19.100.5.018 Solution: Modified RAID drive to use the third mirror in this condition. Fixed in version: 02.19.100.5.018 Solution: Transition to recovery verify when a checksum error is detected in backfill data. Fixed in version: 02.19.100.5.018 Solution: Buffer size increased to 48 bytes. Fixed in version: 02.19.100.5.018 Solution: Clear the NEEDS_DB_REBUILD flag in the FRU table when the last LUN is unbound from the RAID group. This is not done in the current code base and it leads to an unnecessary database rebuild on an unbound FRU. Fixed in version: 02.19.100.5.018 Solution: Detect an invalid base FRU signature to mark the LUN as needing rebuild during an assign. Fixed in version: 02.19.100.5.018 Solution: CMIPCI driver now allocates memory from the correct memory pool. Fixed in version: 02.19.100.5.018 Solution: Modified the media error retry count and PSM timeout. Also eliminated the retry of the remapping of the same block multiple times. Fixed in version: 02.19.100.5.018 Solution: Added support for drive. Hardware problems fixed in version 02.19.100.5.014 Problem AX100SC, AX100SCi, AX100, AX100i - Incorrect part number displayed for 500 GB drive. Details Fixed in version: 02.19.100.5.014 Solution: Corrected text string for 500 GB drive part number. 12 EMC AX100-Series Integrated Management Software Release Notes