Avago Technologies MegaRAID Fast Path Software - Manual (Page 269)

LSI Corporation Confidential | July 2011 Page 269
MegaRAID SAS Software User Guide Chapter 5: MegaRAID Command Tool | FastPath-Related Options
5.20.11 Display the Information for a
Specific View Use the command in the following table to display the information for a specific view if
you specify the view target ID.
5.20.12 Enable the Snapshot Scheduler The snapshot scheduler in the MegaRAID Storage Manager software helps you
automate the creation of point-in-time (PiT) on one or more virtual discs. You can
schedule the snapshot as monthly, weekly, daily, or hourly. The scheduler does not
support biweekly, alternate days, etc.
NOTE: The MegaRAID Storage Manager software or OEM applications must be running
to flush file system buffers and take snapshots when snapshot schedule expires. The
system does not support snapshot creation through BMC (sideband) and snapshot on
volumes, which are used for virtual machine creation under virtualized environment. To
flush the file system buffers, you should interface with the hypervisor.
5.21 FastPath-Related Options The command in this section displays information about the FastPath option.
MegaRAID FastPath is a high-performance IO accelerator for CacheCade 2.0 SSD Read
Caching software drive groups connected to a MegaRAID controller card. CacheCade
2.0 SSD Read Caching software has a read performance advantage over HDDs and uses
less power. This feature dramatically boosts storage subsystem bandwidth and overall
transactional application performance when used with a 6 Gb/s MegaRAID SATA+SAS
controller.
The FastPath feature supports full optimization of CacheCade 2.0 SSD Read Caching
software and hard disk drive (HDD) virtual drive groups to deliver a three-fold
improvement in read and write IOPS compared to MegaRAID controllers not using
FastPath technology. Also, FastPath software is faster and more cost-effective than
current flash-based adapter card solutions.
Table 134: Display the Information for a Specific View
Convention MegaCli -Snapshot -GetViewInfo [-ViewTargetId N ]
-aN|-a0,1,2|-aALL
Description Displays the view information about a particular view if you specify the
-ViewTargetId
. Otherwise, it displays the information about all of the
views.
-ViewTargetId N : (Optional) If specified, this displays the information
about the view with the specified target ID.