Bosch Appliances DVAS instruction manual Disk Statistics, Information Description IOs

DVAS Instruction Manual Bosch GUI EN 24

7.8 Disk Statistics

The page shows information on the disks in the system.

Figure 23 Disk Statistics

Each disk displays its Reads, Writes, Others, Transfer Retries, and Media Retries. If a disk is generating errors, it may fail sometime in the future. RAID 5 configurations should distribute reads and writes evenly among all of the drives.

Available Information:

Information	Description
IOs	Displays the number of requested IOs by the
	host system. The individual figures represent
	each request. Note that a single request may
	be up to 255 blocks long.
Transfer Retries	Displays the number of failure instances due
	to a problem between the RAID controller and
	the ATA disk; normally 0.
Media Retries	Displays the number of failure instances due
	to bad surface media on the hard disk;
	normally 0, although a moderate amount of
	retries is acceptable.
Read	Number of host reads.
Write	Number of host writes.
Other	Number of accesses to RAID configuration
	and/or GUI information (event log, etc.) on the
	disk.

Bosch Security Systems 20 January 2004