Vgc-Config - Hitachi FLASHMAX2 User Manual

vgc-config

If this is a new Flash Drive or if you want to clear the user data, always use
the following procedure to format the drive. Formatting is done at a low level
of the Flash Drive, and is different from the formatting performed by the OS.
Two modes are available for formatting: Maximum Capacity mode or Maximum
Performance mode. The Maximum Capacity mode is effective for applications
with intensive write, and the Maximum Performance mode requires a 15%
sacrifice in user capacity but can double the random write performance when
compared with the Maximum Capacity mode. (However, in terms of
performance in read and sequential write, there is no difference between the
two modes.) If the available capacity is large, the Maximum Performance
mode is recommended.
Command:
# /opt/vgc/bin/vgc-config -d vgcx -m < maxcapacity or maxperformance
> -n 1
Example: To format using the Maximum Capacity mode
# /opt/vgc/bin/vgc-monitor -d vgcx -m maxcapacity -n 1
– Use the
– Enter all paths for
Example: To format using the Maximum Performance mode
# /opt/vgc/bin/vgc config -d vgcx -m maxperformance -n 1
– Use the
– Enter all paths for
During the formatting process, the expected I/O performance cannot be
achieved. Once formatting starts, keep the power turned on for about 15
minutes. (Turning off the power during formatting will not cause any damage.
When the power is turned on, formatting will automatically restart.)
esxcli vgc monitor command to find out the x in "vgcx".
vgc-config .
esxcli vgc-monitor command to find out the x in "vgcx".
vgc-config .
Driver and Utility
PCIe Flash Drive FlashMAX2&3 User's Guide
3-49