iostat does not display all disks

From: <Vladislav.Valikhovsky_at_acs-gsg.com>
Date: Tue, 07 Nov 2000 12:16:43 -0500

Hello SysAdms,

Problem: iostat and uaio (a University of Alaska version) do not display all
        configured disks. Only first four devices are displayed.

Detail: I run "iostat rz19" and get only four columns reporting the first
        four disks on that target. Disks are inside ESA10000 cabinet
        behind HSZ70 controllers. OS is Tru64 4.0F with Patch Kit 4. I
        have six disks configured on six LUNs of the same target 3 of
        bus 2 - rz19 through rzf19. Only rz19 through rzd19 are reported
        by iostat.

Note: While there is a "collect" utility which can query all six disks, I
        have a specific need to be able to use the "iostat" command to
        collect disk stats. COMPAQ Tech Support suggested that I need
        to add all non-LUN-0 disks to the configuration file and rebuild
        kernel in order for iostat to report on non-LUN-0 disks. But,
        iostat currently reports on, at least, three non-LUN-0 devices
        and I do not have any of these defined in the kernel configuration
        file.

Your thoughts would be very much appreciated.

Thank you,

Vladik Valikhovsky
ACS GSG
UNIX Systems Support
(301)921-7034
Received on Tue Nov 07 2000 - 17:24:15 NZDT

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