6.2.4 HP StoreAll Storage Release Notes (AW549-96071, April 2013)

situation only occurred when the read operations involved a cluster network hop to a remote FSN
on a remote couplet, and the issue has been resolved.
• During a mkdir operation, the xdr_encode_netobj dereferencing NULL
xdr_netobj->data pointer message was displayed. The underlying issue has been resolved
so the message no longer appears.
• During Directory Change Notification (DCN) processing, a serialization issue could cause the
thread to loop forever while traversing the list of consumers of the notification. The Linux kernel
would subsequently detect a soft lockup and log messages in regards to the situation would appear
in the kernel log (BUG: soft lockup - CPU#<X> stuck for 10s!
[i_worker_X:<pid>]). The serialization issue has now been fixed.
• There was a request to document file system mount information (specifically, the change to the
default mount options in 6.1 and the use of ibrix_mountpoint to set mount options). The man
pages for the ibrix_mount and ibrix_mountpoint commands and the HP StoreAll Storage
File System User Guide were updated.
• The StoreAll Windows Client would crash when the client was built in debug mode.
• Previously, on the 9730 platform, it was possible that an event indicating, "The controller is not
responding. Reboot the server and replace controller if this does not resolve the issue." might be
sent even though there was not a real hardware or firmware issue with the controller. If HA was
enabled, this would trigger a failover of the owned segments to its partner blade and a reboot
of the blade. This false indication of failure has been resolved, so that a failover will only occur
when needed to recover from a hardware or firmware issue in the controller.
• The following fixes have been made for the 9730 Storage platform:
Storage could become unresponsive when multiple surface scans were launched on a single
physical disk. Interaction between background surface scans and performance has been
significantly improved.
◦
◦ The controller caching policy has been adjusted to significantly reduce the occurrence of
command timeouts and aborts when running heavy workloads with small block sizes.
◦ Drive LEDs could go dark when an MDS600 storage enclosure I/O module was removed.
Drive LEDs are now refreshed in this scenario.
◦ Sometimes MDS600 storage enclosure I/O modules were not visible to the storage controllers
after a FW flash of the I/O module. This has been corrected.
◦ Improved resilience against SAS topology disruptions due to events such as booting of blades,
which could lead to missing paths to storage.
• For a list of firmware fixes, see the FMT User Guide (contact HP Support for more information).
• MDS600 and D6000 drive enclosure drawers are now reported by number: Drawer 1 for the
front-facing left drawer and Drawer 2 for the front-facing right drawer.
• A memory leak was occurring in Fusion Manager.
• For a list of fixes in the Storage Provisioning Tool (SPT), see the HP SPT User Guide (contact HP
Support for more information).
The var/log/message file was not getting rotated nightly.
Workarounds
This section contains workarounds for product situations that may occur:
Workarounds 13