A couple of times now when doing a long alternate server/alternate path restore I’ve seen the speed of the restore drop dramatically (e.g. from around 24 to 26 MB/s to around 600 KB/s) then speed up on occasion but generally stay in that low range.
Normally we’ve seen the former range and we’ve been doing this for the 4 years I’ve been here and in that time have gone from 4.5 to 5.1 to 6 to 6.5. While I’ve seen many a media failure or other event interfere with such long running restores this weird speed change is something new and I’ve seen it on a couple of different servers.
This is on HP-UX 11i.
Does anyone have an idea why this would suddenly be occurring? Is there any known issue in NBU 6.5 that would cause me to see this?
This morning I’ve stopped/started NBU including PBXExchange on the media server and restarted. At present speed seems normal but then again the restore started yesterday did at first as well.
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