| 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 |
Lectori Salutem, One of our customers has the following serious problem : He has an alpha 8200 with an hsz50. It all worked as expected on Digital Unix v3.2C (with hsz50 patches). As 3.2c is due to be obsolete, he upgraded to Digital Unix vs. 3.2g with the DUpatch kit DUV32GAS00001-19970314. He also upgraded the firmware to 3.8. (console firmware showed 4.0-4) So far so good. He now finds out that ther are not enough hours in a night to perform a backup of his system. The backup on Digital Unix 3.2C ran for 9 hours on a tz877 (also on the hsz50) On Digital Unix 3.2g however, it needs 14 hours !!!!!!!! He made the backup with vdump. The strange thing is that a vrestore -t (verify) does not take any longer ------------------------------------------------------------------------- Also using cpio it takes +/- 50 % longer as before. Nothing was changed hardwarewise, only Software and Firmware. Doing a disc - to disc backup of a 800 MB file takes : on an Alpha 4100 with an hsz40 5'40" real time with 1'42" system time on the Alpha 8200 with an hsz50 14'37" real time with 12'30" system time. Can anybody give me a clue what has changed and/or what to do to improve this serious performance problem. Or is it best to downgrade to 3.2c (with patches) again ????? Kind Regards. Wil [Posted by WWW Notes gateway]
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 9600.1 | hsz50 an v3.2g | NNTPD::"[email protected]" | Wil Bergman | Wed Apr 23 1997 09:22 | 19 |
Lectori Salutem, Extra remark, patch OSFPAT00014500375 was included, checked modules with sum and what. /usr/sys/data/cam_data.c subset OSFBINCOM375 CHECKSUM: 21789 128 RCSfile: cam_data.c RCS: 1.1.99.2 /usr/sys/include/io/common/devio.h subset OSFBINCOM350 CHECKSUM: 59868 29 RCSfile: devio.h RCS: 1.1.35.2 Strange phenomenon too : 800 MB sparse file --> 11'17" of which 9'26" system time 800 MB non-sparse file --> 3'50" of which 0'20" system time. Kind Regards, Wil [Posted by WWW Notes gateway] | |||||