Hello,
Enviromnent - NBU 5.1 MP6, solaris-based servers.
When examining destaging statistics I discovered that one of DSSUs is unable to destage a certain portion data and the size of this undestaged data remains constant throughout a long period of time. Then I carefully examined the contents of DSSU directory and found out that there are a number of images fragments that were created one or two months ago. The images these fragments pertain to have already expired. It should also be mentioned that all these fragments are not the first fragments of the respective images, i.e. a number after F letter at the end of a fragment name is greated than 1. When I issue ls -la command against DSSU directory looks like this.
-rw------- 1 root other 1077936128 May 29 01:23 XXXwww6_1180384765_C1_F2
-rw------- 1 root other 123737088 May 29 01:25 XXXwww6_1180384765_C1_F3
-rw------- 1 root other 2048131072 Jul 18 20:50 XXXsparc-01_1184775485_C1_F2
-rw------- 1 root other 1195638784 Jul 18 20:54 XXXsparc-01_1184775485_C1_F3
-rw------- 1 root other 2048131072 Jul 18 20:59 XXXsparc-01_1184775485_C1_F4
I failed to find both first fragments and .ds files of these images in DSSU directory. In my opinion these images were sucessfully destaged and expired.
I don't know whether to just remove these stale fragments or to leave them as they are.
