Exacq exacqVision Virtual User Manual - Manual (Page 12)

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Page 12 of 44
4/12/2013
9
Configuring Virtual Disk Storage
The default deployment of the exacqVision Virtual Appliance (EVA) includes only a 100GB hard drive. In the video storage world, this
is not very much storage; as you increase the number of camera, storage must also be increased. You can use the
Exacq
Configuration Calculator to determine the amount of disk size that you will need. For example, a typical Axis 1.3 MP camera
recording 15 frames per second 30% of the time would require about 10 days of video storage on 100GB of storage space.
Do not remove the 100GB default drive from the EVA until after you start the server for the first time. After the server is online, you
can proceed with removing or adding new drives using the vCenter client and the appliance command line interface. If you remove
the default storage drive before starting the server, the server will lock up. If you don’t plan to use the 100GB drive, you can just thin
provision it. It is not necessary to remove this drive before adding new drives targets because exacqVision Client allows you to
determine which attached drives you want to save data to.
The exacqVision data disks are mounted by label, which is the same as the mount point for each drive. If a new drive is manually
added, modify the etc/fstab file using the same labeling format as the default disk drive:
LABEL=/mnt/export /mnt/export ext4 defaults 0 0
Because the data drive will consume most of the space of any drive, there is no need to partition the data drives. Linux allows the
laying of a file system directly onto the disk. Only the system drive /dev/sda is partitioned.Virtual hard disk 2 is dedicated to
exacqVision export of video files and is 10GB by default. Exported files are not automatically deleted; thus, available space on the
drive must be monitored. The instructions in section 1, “Expanding Virtual Disk Storage” can be used to increase storage availability.