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It might take 48 hours, though, and might have to be done twice. If I updated the firmware and Dashboard software, I would have access to a "Repair Drobo" command which might sort this out.
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In the Data Robotics Knowledge Base I learned that this generally indicates that the UNIX system software on the unit is corrupt. After about 24 hrs of churning away it again showed 5 green lights, but also announced a "mount failure". I replaced a 1 TB disk with a 2 TB disk and it seemed to be happy. At one stage it told me it needed more space in order to complete the job, advising me to replace one of the smaller disks with a larger one. It did show up in Drobo Dashboard, but immediately went into "protection mode" where it was ensuring duplication of the data. I transferred the disks to the new machine.
It was not that the data would be hard to replace, but rather that I had no record of what was there and how it was organized.Īfter reading in Data Robotics' Knowledge Base, I figured a new Drobo FS was in order: transfer the disks, use the new Drobo as before, get the old one repaired and then use it to back up the new one completely. The main potential loss was that the Drobo held one share with duplicates of media files for iTunes streaming. I was not concerned that I might have lost irreplaceable data I had other back-ups including an off-site copy of most of it. The unit was still showing 5 green lights. I presumed that the unit had developed a failure of the network interface - and possibly other things -and might need repair, but that the data was probably still good.
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I shut it down: it took a while to respond to the manual shut-down switch, but it did. Then the Drobo entered into a continual re-start mode. A network pinger could still see it, however.
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Drobo Dashboard could no longer see it, nor could the Mac Finder. The last thing I was able to do was to delete a single file, and that took about ten minutes! A look at the Drobo log showed errors, but no more frequently than when the errors started in early December! Then the Drobo seemed to drop off the network. I measured one transfer at a mere 4 MB/sec - lower than the usual slowest transfer speed. In mid-January 2013 I started noticing a slow-down in data transfers. Still, everything seemed to be working as usual otherwise. Some Mac applications will not save files with names including the forward slash character. On doing some internet reading, I came to the conclusion that this was perhaps a feature not a bug, as one really should not use forward slashes in file names even with Mac systems. The first clue that something might be wrong actually came in early December 2012: files and folders that had a forward slash (/) in their names had their names changed, but were otherwise OK. My Drobo FS unit went into service in late December 2010. I also add some info about the newer 5N version.
I regard it as mostly a good-news story, but others may not see it that way. After two years and two weeks of continuous service I encountered a serious problem, and this is an account of what happened. Thanks.ĭrobo FS (follow-up after 2 years use, recent problems) and Drobo 5N: ( Drobo product page links)Ī year and a half or so ago I provided some comments on the Drobo FS as a Network Attached Storage solution. NOTE: I've tried to include links to the specific NAS mfr's product page (searching for them) in reports below but please include links if you have them (as well as other requested info in email link note above). (Helios also has a "File System Test utility" for testing file server compatibility.)īTW: If you're running "Jumbo Frames" on your ethernet network, include a note and if you've compared performance with and w/o it.
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(send report to news at this site, with NAS model/product link, if it supports AFP, network details, Macs/OS used, etc.) Thanks.īenchmarking: Rather than xbench, please use "Helios LANtest" - available at Helios' Free Utilities download page. If you've used a NAS on your Mac Network (wireless connected or not), let me know the details. (FYI: the Mac 802.11n page here also has some reports/tests on using USB Hard drives with the Airport Extreme 802.11n base's USB port.)
#Chronosync sparse bundle for mac
This page is a catch-all for reader reports on Mac NAS (Network Attached Storage), some including noteson Wireless connected NAS after a reader request for Mac user feedback. Reports/Info last Updated: ( Drobo FS and 5N) Recent Updates | Mac Upgrades/Repairs | Storage | Video | Audio/Home Theater | OS Updates/Tips/WiFi | Home Mac user reports on NAS & Wireless connected NAS
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