Fifteen Minute Job Rate; Individual Drive Performance; Table B-6. Library-Wide Performance-Fifteen Minute Job Rate - StorageTek L180 Operator's Manual

Fifteen Minute Job Rate

This pool of statistics defines the hourly drive job rate the library was given
during continuous fifteen minute intervals. For example, if 31 mounts were
executed during one fifteen minute interval, the "101–125" usage bin (see
below) would increment by one (31 mounts/15 minutes x 60 minutes/hour =
124 mounts per hour). If no mount activity takes place during a five minute
interval, the "idle" bin will increment by one.
T
Table B-6. Library-Wide Performance—Fifteen Minute Job Rate
Bin
Idle
1–25
26–50
51–75
76–100
101–125
126–150
151–175
176–200
201–225
226–250
251–300
301–350
351–400
401–450
451–500
501–550
551– 600
601–650
651–700
701+

Individual Drive Performance

Performance statistics for individual drives is the third component of composite
information. The counters for these statistics are mixed.
95895
Number of mounts within a fifteen minute interval
0
1
2–3
4–5
6
7–8
9–10
11
12–13
14–15
16
17–20
21–23
24–26
27–30
31–33
34–36
37–40
41–43
44–46
47+
Ninth Edition
Composite Information
B-7