HP 3PAR Guia do Utilizador descarregar pdf (Página 182)

100

101

SPECIFIERS

None.

RESTRICTIONS

None.

EXAMPLES

The following example displays one iteration of a histogram of service times for system chunklets:

cli% histch –iter 1

12:42:57 10/20/04 ------------Time (millisec)------------

Ldid Ldname LdCh Pdid PdCh 0.26 0.53 1.05 2.1 4.2 8.4 17 34 67 135

2 tp–0–sa–0.0 1 21 0 0 0 0 0 0 0 0 0 0 0

2 tp–0–sa–0.0 0 45 0 0 0 0 0 0 0 0 0 0 0

1 tp–0–sa–0.1 1 20 0 0 0 0 0 0 1 0 0 0 0

1 tp–0–sa–0.1 0 42 0 0 0 0 0 0 1 0 0 0 0

0 admin.usr.0 1 22 3 0 0 0 1 0 3 2 0 0 0

0 admin.usr.0 0 44 3 0 0 0 0 1 3 2 0 0 0

-----------------------------------------------------------------------

total 0 0 0 1 1 8 4 0 0 0

For the previous example, before the histch command was issued, the setstatch start

command was issued for chunklets 0 and 1 on logical disks admin.usr.0, tp–0–sa–0.1,and

tp–0–sa–0.0.

NOTES

• The setstatch command must be issued to enable statistics collection on chunklets before

issuing the histch command. See “setstatch” (page 331) for additional information.

• Each service time histogram column shows the number of accesses with service times between

the point in time shown in the column's heading to the point in time shown in the heading of

the column to its right (or infinity for the last column). Unless all columns are shown, the first

column shows the number of accesses with service times less than the heading of the second

column.

• Each I/O size histogram column shows the number of accesses with I/O size between the

size shown in the column's heading to the size shown in the heading of the column to its right

(or infinity for the last column).

182 Hist Commands

1 2 ... 177 178 179 180 181 182 183 184 185 186 187 ... 675 676

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