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Chapter 9 - Violin Utilities
158
vpartial
The
utility displays the number of read/write I/O requests processed
vpartial
and the number of partial 4kB flash pages.
Syntax
vpartial
[ <device_index> ]
Example
The
utility returns information similar to the following example when
vpartial
run on a Linux host:
# vpartial
Violin Memory, Inc.
Version: vtms-linux-utils-D4.5.4, 05/23/2011
Device:
vtmsa
Index:
0
-- Target Unaligned / Partial Counts --
Completed read I/O's:
Unaligned host buf reads:
Flash partial page reads:
Completed write I/O's:
Unaligned host buf writes: 0
Flash partial page writes: 4535553
Returns
The
utility returns the following information.
vpartial
Completed read I/O's
Unaligned host buf
reads
Flash partial page
reads
VMA-series Memory Array Installation and Service Guide
1995280246
0
10326
1903433508
Displays the total I/O read requests from a
Memory Array. This is not the individual DMA
descriptors completed, but for each of the
user requested I/Os.
Displays the total I/O read requests from a
Memory Array, but only incremented when an
unaligned host address required special
buffer byte copying to service the DMA
request.
Incremented when a DMA descriptor for
read is less than a flash page (4kB) in size.
HP-AM456-9002A Rev 01
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