HPSS Tickets

Tracking list for current and past tickets related to HPSS.

Open Tickets

Component	Status	Ticket ID	Opened	Closed	Description and History
HPSS	open	CR2803	2015-10-14 by Scott	-	Zero byte files in HPSS should have data While changing the COS, it was seen that zero byte files were not migrated to the new COS. Taking a closer look, some of these files (~20k) should not have had zero size. Investigating.

Past Tickets

Please keep sorted by opening date.

Component	Status	Ticket ID	Opened	Closed	Description and History
HPSS	closed	CR2710	2015-06-23 by Nathan	2015-07-02	Core Server System Backup and DB2 Which of partitions containing DB2 logs need to be included in a backup? What about accounting logs? 2015-07-02: Backing up log archives is sufficient. Accounting data is included in the DB2 backup. Accounting logs can be recreated from there, if necessary.
HPSS	closed	CR2711	2015-06-23 by Nathan	2015-07-02	Changing SC for Files on Tape Discussing change of SC/COS layout. Assuming there's a need to change the storage class for files that have already been written to tape. The new SC would use the same kind of tape media with the same settings. Is it still necessary to move data physically to new tapes when changing SC for these files? 2015-07-02: Unfortunately, yes. There is a command to change a file's SC, but it inevitably includes moving the data.
Hardware	closed	01VV2YN,724	2015-07-15 by Nathan	2015-07-27	DCS3700+ T10PI partitioning In preparation for E2EDI (end to end data integrity), the arrays need to be reformatted with T10PI option enabled. This was initially planned for the system setup, but back then the DCS firmware had a bug which made formatting with T10PI extremely slow. Ticket was opened to ask in which firmware version this bug was fixed. 2015-07-16: No bug known related to slow T10PI formatting - it just takes that long. 2015-07-29: Reopened the ticket, question about parallelism in formatting LUNs. Answer: there are default settings in the firmware, optimized for hardware. Difference between DCS3700 and DCS3700+. May be possible to change values, but not recommended. Ticket closed again.
Hardware	closed	01VV2MW,724	2015-07-16 by Nathan	2015-07-16	Mover Server RAID Adapter In preparation to the bare metal restore testing, we need to know how the M5110 RAID adapter behaves in different configurations. 2015-07-16: RAID config is stored on all disks that are part of the RAID. Using the RAID config tool, the user can decide to restore settings from disk (if available), which will keep data on disks that were part of that RAID array before.

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