
O
CTOBER
2002
E
XABYTE
VXA-2 A
UTO
P
AK1x7
A
UTOLOADER
83
P
ERFORMANCE
S
PECIFICATIONS
A
UTOLOADER
P
OWER
-O
N
S
ELF
-T
EST
T
IME
Each time the autoloader is powered on, it performs a power-on self-test
(POST). During POST, the autoloader:
!
Performs self-diagnostics and boots up
!
Moves the robot to the home position (in front of the tape drive)
!
Checks for cartridges in each slot
If the cartridges are properly installed, the autoloader is ready for operation. If
any cartridge is not properly installed, the autoloader reports an error and the
robot returns to the home position.
The POST time is measured from the time the autoloader is powered on until
it indicates ready status. The average POST time is 34 seconds.
M
OVE
C
OMPLETE
T
IME
Move complete time is measured from the time the autoloader receives a
move command to the time the autoloader returns status indicating that the
move is complete. During a move, the robot picks a cartridge from a slot or the
tape drive, moves it, and places it into another slot or the tape drive.
The average move complete time for the autoloader is less than 10 seconds.
R
OBOT
R
ELIABILITY
The mean cycles between failures (MCBF) for the autoloader’s robot is
500,000 cycles. This value does not include failures attributable to the tape
drive, data cartridge, or the cartridge magazine.
During one full cycle, the robot completes the following actions:
!
Picks a cartridge from a cartridge slot.
!
Places the cartridge in the tape drive.
!
Removes the cartridge from the tape drive.
!
Replaces the cartridge in the cartridge slot.