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 Post subject: ddscan
PostPosted: Thu Oct 12, 2017 8:45 am 

Joined: Fri Oct 07, 2016 2:34 am
Posts: 6
Hello all,
has anyone encounter the following messages? They started showing up about a month ago. We haven't made any changes to the system since a long time.
We are running 8200 with 3.2.2.530 (MU3)


Time Node Severity Type Component Message
2017-10-11 19:59:16 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:06:22 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:14:09 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:21:09 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:28:07 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:35:07 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:42:03 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:48:40 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:51:02 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 20:57:59 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 21:04:58 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 21:11:59 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 21:19:25 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 21:27:00 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 21:30:03 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_d.2 SD takes 0 sec to reclaim 384 MB space, total reclaim history is 2931712 MB.
2017-10-11 21:30:04 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_d.3 SD takes 0 sec to reclaim 256 MB space, total reclaim history is 3055360 MB.
2017-10-11 21:34:01 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 21:41:10 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 21:48:06 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 21:54:42 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 21:57:00 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 22:00:00 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_s.0 SD takes 0 sec to reclaim 128 MB space, total reclaim history is 596992 MB.
2017-10-11 22:04:27 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 22:12:17 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 22:19:27 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 22:27:08 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 22:34:27 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 22:42:24 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 22:50:16 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 22:57:19 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 22:59:49 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 23:02:03 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 2 secs
2017-10-11 23:03:58 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 23:10:54 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 23:12:52 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 23:15:00 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_d.2 SD takes 0 sec to reclaim 640 MB space, total reclaim history is 2932352 MB.
2017-10-11 23:19:57 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 23:26:50 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 23:33:54 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 23:41:02 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 23:48:13 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-11 23:54:36 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-11 23:56:54 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 00:05:01 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 00:13:33 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 00:22:38 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 00:31:20 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 00:40:30 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 00:49:32 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 00:58:45 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 01:07:06 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 01:14:05 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 01:16:21 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 4 secs
2017-10-12 01:19:55 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 01:27:37 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 01:35:36 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 01:43:44 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 01:51:46 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 02:00:56 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 02:08:14 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 02:15:09 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 02:21:44 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 02:24:03 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 02:31:01 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 02:38:00 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 02:44:58 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 02:51:57 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 02:58:55 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 03:06:01 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 03:12:55 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 03:19:52 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 03:26:37 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 03:28:49 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 03:31:09 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 03:38:05 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 03:45:01 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_u.0 SD takes 0 sec to reclaim 1024 MB space, total reclaim history is 1052032 MB.
2017-10-12 03:45:01 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_u.1 SD takes 0 sec to reclaim 640 MB space, total reclaim history is 1064960 MB.
2017-10-12 03:45:02 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_u.2 SD takes 0 sec to reclaim 128 MB space, total reclaim history is 1069184 MB.
2017-10-12 03:45:02 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_u.3 SD takes 0 sec to reclaim 1664 MB space, total reclaim history is 1081728 MB.
2017-10-12 03:45:10 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 03:47:56 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 03:50:07 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 03:56:46 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 04:04:39 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 04:12:21 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 04:20:06 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 04:22:13 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 04:29:08 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 04:36:14 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 04:43:03 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 04:45:00 EEST 0 Debug Notification undefined (sysmgr : 11701) VV vv_vmfarm SD takes 0 sec to reclaim 6144 MB space, total reclaim history is 154240 MB.
2017-10-12 04:50:03 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 04:57:21 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 05:05:24 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 05:13:23 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 05:21:23 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 05:29:07 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 05:31:16 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 05:38:27 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 05:41:28 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 5 secs
2017-10-12 05:44:11 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 05:51:11 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 1 secs
2017-10-12 05:58:17 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 06:05:28 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 0 secs
2017-10-12 06:13:21 EEST 1 Debug Notification undefined (ddcscan : 10434) GC: DDS vv .sysvv_0SSD_R5_7-1_cage_VM (id 71) Reclaim phase exec time: 2 secs

Thanks,
George


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 Post subject: Re: ddscan
PostPosted: Fri Oct 13, 2017 5:03 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1570
Location: Europe
Looks to me like the background job releasing un-referenced blocks in the dedupe pool/store.

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 Post subject: Re: ddscan
PostPosted: Fri Oct 13, 2017 8:48 am 

Joined: Fri Oct 07, 2016 2:34 am
Posts: 6
MammaGutt wrote:
Looks to me like the background job releasing un-referenced blocks in the dedupe pool/store.


It's a bit disturbing though because it just started to occur a month ago and it does not stop. Maybe I should create a ticket to HPE.


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 Post subject: Re: ddscan
PostPosted: Fri Oct 13, 2017 9:54 am 

Joined: Wed Nov 19, 2014 5:14 am
Posts: 505
It's garbage collection for the DDS so is intended to run often - whenever it gets a chance. If it only recently started then you either didn't previously have dedupe volumes or maybe you recently upgrades the firmware.


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 Post subject: Re: ddscan
PostPosted: Fri Oct 13, 2017 10:22 am 

Joined: Fri Oct 07, 2016 2:34 am
Posts: 6
JohnMH wrote:
It's garbage collection for the DDS so is intended to run often - whenever it gets a chance. If it only recently started then you either didn't previously have dedupe volumes or maybe you recently upgrades the firmware.


Thanks for the reply,
unfortunately nothing of the above is true in our situation. We have been using deduped volumes since the beginning and we haven't had a firmware upgrade since the installation of the storage about a year ago.


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 Post subject: Re: ddscan
PostPosted: Fri Oct 13, 2017 11:27 am 

Joined: Wed Nov 19, 2014 5:14 am
Posts: 505
it looks just like regular garbage collection which if it wasn't happening you'd have a lot of stale data sat in the DDS and be running out of space. From memory this kicks off every 5 or 6 mins or so but maybe there's a high watermark or some other trigger that you've hit, open a ticket and see what they say.


Last edited by JohnMH on Fri Oct 13, 2017 11:42 am, edited 1 time in total.

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 Post subject: Re: ddscan
PostPosted: Fri Oct 13, 2017 11:39 am 

Joined: Fri Oct 07, 2016 2:34 am
Posts: 6
JohnMH wrote:
it looks just like regular garbage collection which if it wasn't happening you'd have a lot of stale data sat in the DDS and be running out of space. From memory this kicks off every 6 mins or so but maybe there's a high watermark or some other trigger that you've hit, open a ticket and see what they say.


Thanks mate.


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