Thank you both for answering.
When I’ve enabled Spotlight indexing on the Drobo, things gotten worse: it took like forever to index, and I can’t tell for sure if it was due to indexation, but it was silently disconnecting and reconnecting itself! I saw that at first by slowdown, then some transfers failed, and this logged to the console (it’s a bit long, sorry):
04/03/2014 21:12:36,000 kernel[0]: ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 777 on so 0xffffff80560f48e8
04/03/2014 21:12:36,000 kernel[0]: AFP_VFS afpfs_DoReconnect: doing reconnect on /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:36,000 kernel[0]: AFP_VFS afpfs_DoReconnect: posting to KEA EINPROGRESS for /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:36,000 kernel[0]: AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:36,000 kernel[0]: AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:36,235 KernelEventAgent[76]: tid 54485244 received event(s) VQ_NOTRESP (1)
04/03/2014 21:12:36,235 KernelEventAgent[76]: tid 54485244 type 'afpfs', mounted on '/Volumes/Drobo5N/drb134701a00168/1/Odysseus', from '//GeJe@Drobo-G.local/Odysseus', not responding
04/03/2014 21:12:36,235 KernelEventAgent[76]: tid 54485244 type 'afpfs', mounted on '/Volumes/Drobo5N/drb134701a00168/1/Public', from '//GeJe@Drobo-G.local/Public', not responding
04/03/2014 21:12:36,236 KernelEventAgent[76]: tid 54485244 found 2 filesystem(s) with problem(s)
04/03/2014 21:12:36,000 kernel[0]: AFP_VFS afpfs_DoReconnect: Logging in with uam 8 /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:41,000 kernel[0]: AFP_VFS afpfs_DoReconnect: Restoring session /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:42,000 kernel[0]: AFP_VFS afpfs_DoReconnect: posting to KEA EINPROGRESS for /Volumes/Drobo5N/drb134701a00168/1/Odysseus
04/03/2014 21:12:42,241 KernelEventAgent[76]: tid 54485244 received event(s) VQ_NOTRESP (1)
04/03/2014 21:12:42,241 KernelEventAgent[76]: tid 54485244 found 2 filesystem(s) with problem(s)
04/03/2014 21:12:46,000 kernel[0]: AFP_VFS afpfs_DoReconnect: Primary Reconnect failed 22 on /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:46,000 kernel[0]: AFP_VFS afpfs_DoReconnect: trying Secondary Reconnect on /Volumes/Drobo5N/drb134701a00168/1/Public
04/03/2014 21:12:46,000 kernel[0]: ASP_TCP CancelOneRequest: cancelling slot 122 error 35 reqID 7325 flags 0x29 afpCmd 0x48 so 0xffffff80560f48e8
04/03/2014 21:12:46,765 KernelEventAgent[76]: tid 54485244 received event(s) VQ_NOTRESP (1)
04/03/2014 21:12:46,000 kernel[0]: AFP_VFS afpfs_DoReconnect: get the reconnect token
04/03/2014 21:12:47,000 kernel[0]: AFP_VFS afpfs_DoReconnect: already reconnected socketID 778 on /Volumes/Drobo5N/drb134701a00168/1/Odysseus
04/03/2014 21:12:47,000 kernel[0]: AFP_VFS afpfs_DoReconnect: trying secondary reconnect /Volumes/Drobo5N/drb134701a00168/1/Odysseus
04/03/2014 21:12:47,000 kernel[0]: AFP_VFS afpfs_DoReconnect: get the reconnect token
04/03/2014 21:12:47,300 KernelEventAgent[76]: tid 54485244 received event(s) VQ_NOTRESP (1)
Furthermore, the search wasn’t fast at all, like a normal search I’d get with software like EasyFind.
I’ve since disabled it, hoping that was the cause for the disconnections.
Ricardo, do you think, after reading the Netatalk page about Spotlight, even with a kernel unaware of extended attributes, there is a chance to have Spotlight working? And furthermore, won’t this fix the flooding log issues in the console I mentioned in my other post?