RAID Array 410 HSZ40 HSOF Software Version 3.7 for Compaq Tru64 UNIX Release Notes

RAID Array 410 HSZ40 HSOF Software Version 3.7 for Compaq Tru64 UNIX
Page 42 AA–RMBXA − TE
Figure 8-2. Chunk Size Smaller than the Request Size
CXO-5172A-MC
Chunk size = 128k (256 blocks)
A
1
A
4
A
2
A
3
Request A
Applications such as CAD, image processing, data collection and reduction,
and sequential file processing tend to require high data-transfer rates.
8.1.1.4
Increasing Sequential Write Performance
Sequential write and read requests on stripesets (or striped mirrorsets), should
use a small chunk size relative to the I/O size to increase the performance. A
chunk size of 17 generally works well
8.2 Array Controller HSOF V3.1 CLI Reference Manual
8.2.1 Chunk Size
Referring to the section titled Initialize, Switches in the HSZ40 Array
Controller HSOF Version 3.1 CLI Reference Manual, page 2-38 the
information regarding “Chunk Size” should be replaced. Please refer to the
above section of these Release Notes (Section 8.1.1, Chunk Size) for the
correct information.
8.2.2 SET unit-number
Referring to the section titled Set unit-number in the HSZ40 Array Controller
HSOF Version 3.1 CLI Reference Manual on page 2-80, the below example
was included in error. Please strike through this example.
TO SET UNIT T47 TO 1600 BPI
CLI> SET T47 DEFAULT_FORMAT=1600BPI_9TRACK