| Title: | DIGITAL UNIX (FORMERLY KNOWN AS DEC OSF/1) |
| Notice: | Welcome to the Digital UNIX Conference |
| Moderator: | SMURF::DENHAM |
| Created: | Thu Mar 16 1995 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 10068 |
| Total number of notes: | 35879 |
I have an ISV who reported the following problem while trying to
capture disk statistics. Is there a patch avail for this problem?
Company Name : Landmark Systems Corporation
Contact Name : Craig E. Despeaux
Category : unix
OS Version : 4.0b
Brief Description of Problem:
-----------------------------
I'm issuing the table system call on Digital Unix 3.2 and 4.0B to retrieve
information from the disk statistics table. The problem is that zeros are
returned for all fields in the tbl_dkinfo structure with the exception of
di_xfer and di_wds on Digital Unix 3.2. On Digital 4.0B, zeros are returned
for all fields but di_xfer, di_wds, and di_avserv. The non-zero values are
definitely increasing with each execution of the program, however, they are
the only fields returning non-zero data. I am certain that the appropriate
index into the table is being used for the disk in question. Are we missing
something that needs to be configured to turn on collection for the other
disk statistics?
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 9579.1 | NABETH::alan | Dr. File System's Home for Wayward Inodes. | Tue Apr 22 1997 18:45 | 16 | |
What you are missing is a disk driver that collects all the information. However, since one doesn't exist, there isn't much you can do about except file IPMT cases and give product managers sales numbers for what the feature is worth. For some of the numbers, it may not make sense to collect values; di_seek. None of the storage protocols supported by Digital UNIX require an explicit seek to get data. They work by requesting an LBN range. If the disk has to seek to get to the data, that's the disk's problem. It is quite reasonable for that field to be zero. Monitor's life would easier if the di_avque had a something in it and I've been that told that that is one of the many things to be fixed in Steel. Maybe some of the others will be as well. | |||||