coolspot

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  1. Hello, Lately, my unRAID server becomes unresponsive after a few days. I can still SSH in... and the Web GUI mostly loads but the server is SLOW. Here is the error message I'm seeing in DMESG when this occurs. When this happens, I think Mover/Rsync is running. I have 8GB of RAM, top command shows very high CPU usage, but that some RAM is still free: top - 14:57:12 up 4 days, 14:15, 1 user, load average: 16.70, 16.04, 15.45 Tasks: 342 total, 3 running, 339 sleeping, 0 stopped, 0 zombie %Cpu(s): 3.2 us, 55.2 sy, 0.0 ni, 3.8 id, 37.2 wa, 0.0 hi, 0.7 si, 0.0 st KiB Mem : 7877704 total, 174088 free, 319612 used, 7384004 buff/cache KiB Swap: 0 total, 0 free, 0 used. 6304728 avail Mem Any ideas? 396021.499182] openvpn: page allocation stalls for 13409ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) [396021.499190] CPU: 0 PID: 17754 Comm: openvpn Not tainted 4.9.30-unRAID #1 [396021.499191] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./H61M/U3S3, BIOS P2.40 04/10/2013 [396021.499193] ffffc90009fbfb28 ffffffff813a4a1b 0000000000000001 0000000000000000 [396021.499195] ffffc90009fbfbb8 ffffffff810cb5b1 024201ca1f5f2700 ffffffff8193d4e2 [396021.499197] ffffc90009fbfb50 0000000000000010 ffffc90009fbfbc8 ffffc90009fbfb68 [396021.499199] Call Trace: [396021.499205] [<ffffffff813a4a1b>] dump_stack+0x61/0x7e [396021.499208] [<ffffffff810cb5b1>] warn_alloc+0x102/0x116 [396021.499211] [<ffffffff810d7980>] ? try_to_free_pages+0x9e/0xa5 [396021.499213] [<ffffffff810cbb67>] __alloc_pages_nodemask+0x541/0xc71 [396021.499215] [<ffffffff810c4d78>] ? __page_cache_alloc+0x89/0x9f [396021.499217] [<ffffffff810d0c59>] ? __do_page_cache_readahead+0xf1/0x21f [396021.499220] [<ffffffff81102d82>] alloc_pages_current+0xbe/0xe8 [396021.499221] [<ffffffff810c4d78>] __page_cache_alloc+0x89/0x9f [396021.499223] [<ffffffff810c6971>] filemap_fault+0x23d/0x458 [396021.499225] [<ffffffff810e8f38>] __do_fault+0x68/0xbb [396021.499227] [<ffffffff810edf55>] handle_mm_fault+0x6b1/0xf96 [396021.499230] [<ffffffff81042252>] __do_page_fault+0x24a/0x3ed [396021.499232] [<ffffffff81042438>] do_page_fault+0x22/0x27 [396021.499235] [<ffffffff81680f18>] page_fault+0x28/0x30 [396021.499236] Mem-Info: [396021.499240] active_anon:172792 inactive_anon:31009 isolated_anon:0 active_file:1413022 inactive_file:204024 isolated_file:288 unevictable:0 dirty:203353 writeback:913 unstable:0 slab_reclaimable:34449 slab_unreclaimable:41977 mapped:18778 shmem:150536 pagetables:3176 bounce:0 free:42101 free_pcp:105 free_cma:0 [396021.499244] Node 0 active_anon:691168kB inactive_anon:124036kB active_file:5652088kB inactive_file:816096kB unevictable:0kB isolated(anon):0kB isolated(file):1280kB mapped:75112kB dirty:813412kB writeback:3652kB shmem:602144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 118784kB writeback_tmp:0kB unstable:0kB pages_scanned:8096 all_unreclaimable? no [396021.499245] Node 0 DMA free:15888kB min:272kB low:340kB high:408kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15972kB managed:15888kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [396021.499248] lowmem_reserve[]: 0 3121 7594 7594 [396021.499250] Node 0 DMA32 free:73228kB min:55440kB low:69300kB high:83160kB active_anon:122268kB inactive_anon:2500kB active_file:2636004kB inactive_file:340636kB unevictable:0kB writepending:340840kB present:3356784kB managed:3281220kB mlocked:0kB slab_reclaimable:74724kB slab_unreclaimable:27012kB kernel_stack:380kB pagetables:3172kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [396021.499254] lowmem_reserve[]: 0 0 4473 4473 [396021.499256] Node 0 Normal free:79288kB min:79448kB low:99308kB high:119168kB active_anon:568900kB inactive_anon:121536kB active_file:3016084kB inactive_file:475564kB unevictable:0kB writepending:476224kB present:4708352kB managed:4580596kB mlocked:0kB slab_reclaimable:63072kB slab_unreclaimable:140896kB kernel_stack:6212kB pagetables:9532kB bounce:0kB free_pcp:300kB local_pcp:68kB free_cma:0kB [396021.499259] lowmem_reserve[]: 0 0 0 0 [396021.499261] Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 15888kB [396021.499269] Node 0 DMA32: 955*4kB (UME) 1588*8kB (UME) 1496*16kB (UME) 492*32kB (UME) 178*64kB (UME) 44*128kB (UME) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 73228kB [396021.499276] Node 0 Normal: 8988*4kB (UME) 4619*8kB (UMEH) 14*16kB (UMH) 0*32kB 0*64kB 0*128kB 4*256kB (H) 2*512kB (H) 0*1024kB 2*2048kB (H) 0*4096kB = 79272kB [396021.499284] 1767891 total pagecache pages [396021.499285] 0 pages in swap cache [396021.499286] Swap cache stats: add 0, delete 0, find 0/0 [396021.499287] Free swap = 0kB [396021.499287] Total swap = 0kB [396021.499288] 2020277 pages RAM [396021.499288] 0 pages HighMem/MovableOnly [396021.499289] 50851 pages reserved [396039.664921] cpuload: page allocation stalls for 10333ms, order:0, mode:0x24200ca(GFP_HIGHUSER_MOVABLE) [396039.664929] CPU: 1 PID: 1600 Comm: cpuload Not tainted 4.9.30-unRAID #1 [396039.664930] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./H61M/U3S3, BIOS P2.40 04/10/2013 [396039.664932] ffffc900019fbb18 ffffffff813a4a1b 0000000000000001 0000000000000000 [396039.664935] ffffc900019fbba8 ffffffff810cb5b1 024200ca1f5f2700 ffffffff8193d4e2 [396039.664937] ffffc900019fbb40 0000000000000010 ffffc900019fbbb8 ffffc900019fbb58 [396039.664939] Call Trace: [396039.664944] [<ffffffff813a4a1b>] dump_stack+0x61/0x7e [396039.664947] [<ffffffff810cb5b1>] warn_alloc+0x102/0x116 [396039.664950] [<ffffffff810d7980>] ? try_to_free_pages+0x9e/0xa5 [396039.664951] [<ffffffff810cbb67>] __alloc_pages_nodemask+0x541/0xc71 [396039.664955] [<ffffffff81117aef>] ? get_mem_cgroup_from_mm+0x9c/0xa4 [396039.664958] [<ffffffff8107d2e2>] ? cpuacct_charge+0x47/0x73 [396039.664960] [<ffffffff81103997>] alloc_pages_vma+0x183/0x1f5 [396039.664963] [<ffffffff810e90f7>] wp_page_copy+0x95/0x586 [396039.664965] [<ffffffff810ea3e3>] do_wp_page+0x17a/0x5c8 [396039.664967] [<ffffffff810ee516>] handle_mm_fault+0xc72/0xf96 [396039.664970] [<ffffffff81042252>] __do_page_fault+0x24a/0x3ed [396039.664972] [<ffffffff81042438>] do_page_fault+0x22/0x27 [396039.664976] [<ffffffff81680f18>] page_fault+0x28/0x30 [396039.664977] Mem-Info: [396039.664981] active_anon:173056 inactive_anon:30978 isolated_anon:0 active_file:1413543 inactive_file:202574 isolated_file:480 unevictable:0 dirty:201777 writeback:1136 unstable:0 slab_reclaimable:34459 slab_unreclaimable:42275 mapped:18812 shmem:150537 pagetables:3422 bounce:0 free:42117 free_pcp:58 free_cma:0 [396039.664984] Node 0 active_anon:692224kB inactive_anon:123912kB active_file:5654172kB inactive_file:810296kB unevictable:0kB isolated(anon):0kB isolated(file):2048kB mapped:75248kB dirty:807108kB writeback:4544kB shmem:602148kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 118784kB writeback_tmp:0kB unstable:0kB pages_scanned:2944 all_unreclaimable? no [396039.664985] Node 0 DMA free:15888kB min:272kB low:340kB high:408kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15972kB managed:15888kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [396039.664988] lowmem_reserve[]: 0 3121 7594 7594 [396039.664990] Node 0 DMA32 free:73216kB min:55440kB low:69300kB high:83160kB active_anon:122904kB inactive_anon:2400kB active_file:2637068kB inactive_file:337344kB unevictable:0kB writepending:337820kB present:3356784kB managed:3281220kB mlocked:0kB slab_reclaimable:74808kB slab_unreclaimable:27924kB kernel_stack:360kB pagetables:3588kB bounce:0kB free_pcp:132kB local_pcp:0kB free_cma:0kB [396039.664994] lowmem_reserve[]: 0 0 4473 4473 [396039.664996] Node 0 Normal free:79364kB min:79448kB low:99308kB high:119168kB active_anon:569320kB inactive_anon:121512kB active_file:3017104kB inactive_file:472904kB unevictable:0kB writepending:473832kB present:4708352kB managed:4580596kB mlocked:0kB slab_reclaimable:63028kB slab_unreclaimable:141176kB kernel_stack:6200kB pagetables:10100kB bounce:0kB free_pcp:100kB local_pcp:4kB free_cma:0kB [396039.664999] lowmem_reserve[]: 0 0 0 0 [396039.665001] Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 15888kB [396039.665009] Node 0 DMA32: 1242*4kB (ME) 1547*8kB (UME) 1490*16kB (UME) 469*32kB (UME) 178*64kB (UME) 44*128kB (UME) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 73216kB [396039.665016] Node 0 Normal: 8940*4kB (UME) 4653*8kB (UMEH) 18*16kB (UMH) 0*32kB 0*64kB 0*128kB 4*256kB (H) 2*512kB (H) 0*1024kB 2*2048kB (H) 0*4096kB = 79416kB [396039.665024] 1767154 total pagecache pages [396039.665025] 0 pages in swap cache [396039.665026] Swap cache stats: add 0, delete 0, find 0/0 [396039.665026] Free swap = 0kB [396039.665027] Total swap = 0kB [396039.665028] 2020277 pages RAM [396039.665028] 0 pages HighMem/MovableOnly [396039.665028] 50851 pages reserved [396040.931049] smbd: page allocation stalls for 10113ms, order:0, mode:0x24200ca(GFP_HIGHUSER_MOVABLE) [396040.931056] CPU: 1 PID: 3297 Comm: smbd Not tainted 4.9.30-unRAID #1 [396040.931056] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./H61M/U3S3, BIOS P2.40 04/10/2013 [396040.931058] ffffc9000c373b18 ffffffff813a4a1b 0000000000000001 0000000000000000 [396040.931061] ffffc9000c373ba8 ffffffff810cb5b1 024200ca1f5f2700 ffffffff8193d4e2 [396040.931063] ffffc9000c373b40 0000000000000010 ffffc9000c373bb8 ffffc9000c373b58 [396040.931065] Call Trace: [396040.931070] [<ffffffff813a4a1b>] dump_stack+0x61/0x7e [396040.931074] [<ffffffff810cb5b1>] warn_alloc+0x102/0x116 [396040.931076] [<ffffffff810d7980>] ? try_to_free_pages+0x9e/0xa5 [396040.931078] [<ffffffff810cbb67>] __alloc_pages_nodemask+0x541/0xc71 [396040.931080] [<ffffffff810d1591>] ? release_pages+0xe6/0x2da [396040.931083] [<ffffffff81103997>] alloc_pages_vma+0x183/0x1f5 [396040.931086] [<ffffffff810e90f7>] wp_page_copy+0x95/0x586 [396040.931088] [<ffffffff810ebdc0>] ? alloc_set_pte+0x322/0x490 [396040.931090] [<ffffffff810ea3e3>] do_wp_page+0x17a/0x5c8 [396040.931092] [<ffffffff810ee516>] handle_mm_fault+0xc72/0xf96 [396040.931095] [<ffffffff81042252>] __do_page_fault+0x24a/0x3ed [396040.931097] [<ffffffff81042438>] do_page_fault+0x22/0x27 [396040.931101] [<ffffffff81680f18>] page_fault+0x28/0x30 [396040.931102] Mem-Info: [396040.931106] active_anon:173062 inactive_anon:30978 isolated_anon:0 active_file:1413543 inactive_file:202474 isolated_file:480 unevictable:0 dirty:201670 writeback:1144 unstable:0 slab_reclaimable:34459 slab_unreclaimable:42289 mapped:18812 shmem:150537 pagetables:3423 bounce:0 free:42123 free_pcp:147 free_cma:0 [396040.931109] Node 0 active_anon:692248kB inactive_anon:123912kB active_file:5654172kB inactive_file:809896kB unevictable:0kB isolated(anon):0kB isolated(file):1920kB mapped:75248kB dirty:806680kB writeback:4576kB shmem:602148kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 118784kB writeback_tmp:0kB unstable:0kB pages_scanned:1504 all_unreclaimable? no [396040.931110] Node 0 DMA free:15888kB min:272kB low:340kB high:408kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15972kB managed:15888kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [396040.931114] lowmem_reserve[]: 0 3121 7594 7594 [396040.931116] Node 0 DMA32 free:73292kB min:55440kB low:69300kB high:83160kB active_anon:122904kB inactive_anon:2400kB active_file:2637068kB inactive_file:337188kB unevictable:0kB writepending:337632kB present:3356784kB managed:3281220kB mlocked:0kB slab_reclaimable:74808kB slab_unreclaimable:27924kB kernel_stack:360kB pagetables:3588kB bounce:0kB free_pcp:212kB local_pcp:60kB free_cma:0kB [396040.931120] lowmem_reserve[]: 0 0 4473 4473 [396040.931122] Node 0 Normal free:79312kB min:79448kB low:99308kB high:119168kB active_anon:569344kB inactive_anon:121512kB active_file:3017104kB inactive_file:472584kB unevictable:0kB writepending:473624kB present:4708352kB managed:4580596kB mlocked:0kB slab_reclaimable:63028kB slab_unreclaimable:141232kB kernel_stack:6200kB pagetables:10104kB bounce:0kB free_pcp:376kB local_pcp:336kB free_cma:0kB [396040.931125] lowmem_reserve[]: 0 0 0 0 [396040.931127] Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 15888kB [396040.931135] Node 0 DMA32: 1291*4kB (UME) 1532*8kB (UME) 1490*16kB (UME) 469*32kB (UME) 178*64kB (UME) 44*128kB (UME) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 73292kB [396040.931143] Node 0 Normal: 8911*4kB (UME) 4653*8kB (UMEH) 18*16kB (UMH) 0*32kB 0*64kB 0*128kB 4*256kB (H) 2*512kB (H) 0*1024kB 2*2048kB (H) 0*4096kB = 79300kB [396040.931151] 1767053 total pagecache pages [396040.931152] 0 pages in swap cache [396040.931153] Swap cache stats: add 0, delete 0, find 0/0 [396040.931153] Free swap = 0kB [396040.931154] Total swap = 0kB [396040.931154] 2020277 pages RAM [396040.931155] 0 pages HighMem/MovableOnly [396040.931155] 50851 pages reserved
  2. I disabled VT-D on mine and also Int13h and I was still having corruption issue. In the end, I replaced it with an LSI 9211-8i (plug-n-play replacement) and now my parity is stable.
  3. I'm running P19 firmware and unRAID is very stable. I did not bother upgrading to P20. The latest firmware is on Broadcom's website under Support --> Download Documentation and Drivers --> Legacy products --> All Products --> Search for SAS 9211-8i: https://www.broadcom.com/support/download-search/?pg=Legacy+Products&pf=Legacy+Products&pn=SAS+9211-8i+Host+Bus+Adapter&po=&pa=&dk=
  4. ISCSI would be a nice addition to unRAID, but I fear that the speeds won't be very good. I'm not sure if iSCSI is implemented it will be able to leverage the cache drive properly unless the iSCSI file is chunked into small blocks. If that were the case, it would add a lot of load to mover? Also, while Synology has iSCSI, it's implementation seems really flaky - I've been having a lot of issues with Windows 2012 R2 connecting to it after a reboot. So if unRAID were to implement iSCSI, hopefully it would be done properly.
  5. Your new drive has been the same size or smaller than your parity drive. If it is, just pull the old drive and swap in the new drive and rebuild (or copy the files). You could just rebuild the array right - because the replaced drive would be considered a failed drive?
  6. This card should be recognized by unRAID, but with recent versions of unRAID, the card has a "fixed sector" a parity error. Its unfortunately because in all other respects the card sees to run fine and is readily available. I have a card with the same Marvell chipset and I am replacing it with an LSI based card so that I can run with clean parity. In short, return the card and switch to an LSI based one. If you're looking for a replacement card, this one just arrived for me and seems to work great: http://www.ebay.ca/itm/291641245650 (Genuine LSI 9211-8i Pre-Flashed for IT mode). You can save a few bucks by ordering a Dell H310 card and flashing it yourself, but I was in no mood to fidget with the hardware anymore.
  7. UnRAID is a pretty good piece of software, but documentation is sorely lacking. Since I started using it in January, I've ran into a couple issues that were "difficult" to solve due to inadequate documentation. Not to mention, wasted $130 on a Highpoint 2720SGL card only to find out in the latest releases there are compatibility issues. Since UnRAID is targeted at a "mainstream" audience rather than a more technical one like say FreeNAS, I think significant more effort should be spent on improving documentation + providing up-to-date hardware builds.
  8. Hi all, I'm replacing my Highpoint 2720SGL due to party issues with a LSI 9211-8i card. Should I use P19 or P20 firmware in IT mode or does it not matter? Thanks.
  9. How do you edit the Wiki? The Hardware Compatibility is out of date ... for example the SAS2LP which I purchased is supposed to be compatible but in v6.x it has parity errors? The Wiki says you need to be logged into the forum to edit ... but even when I am logged in, there is no edit option? Thanks.
  10. No it's fine afterwards - this seems to be a problem with the Marvell chipset ... I see that others with a SuperMicro SAS2LP have the problem. I have a Highpoint RocketRaid 2720SGL which has the same chipset. I'm going to try to turn off IOMMU / VT-D and see if this fixes things.
  11. I'm also having the same problem - in my logs, I see the exact same 5 sectors: May 6 05:33:01 nasserv kernel: md: recovery thread: PQ corrected, sector=3519069768 May 6 05:33:01 nasserv kernel: md: recovery thread: PQ corrected, sector=3519069776 May 6 05:33:01 nasserv kernel: md: recovery thread: PQ corrected, sector=3519069784 May 6 05:33:01 nasserv kernel: md: recovery thread: PQ corrected, sector=3519069792 May 6 05:33:01 nasserv kernel: md: recovery thread: PQ corrected, sector=3519069800 However, I do not have any ATA link errors. Is there a way to tell which drive those sectors belong to?Attached are my diagnostic logs. nasserv-diagnostics-20170506-1423-2.zip
  12. Hi all, My pfSense server crashed last night and my unRAID server lost it's IP address. How do I renew the IP from the command line? Thanks.
  13. So I guess this has not been resolved? Can anyone recommend another Transmission docker image or a torrent image with better support? Thanks.
  14. Hello Everyone, I pulled a couple of drives in preparation to upgrade them, unfortunately the Web GUI hung and caused the system to be flagged as unclean shutdown. Since the drives were pulled, the disks were flagged as invalid and contents emulated as expected. However, when starting up the array, it needs to do a parity check do to an unclean shutdown - but what is the point when the contents are emulated? What parity data is it checking if 2 drives are missing - the data on the remaining drives? Thanks.
  15. I'm also having the problem with my settings not saving in the wrench icon screen. Was this resolved? I'm running the latest version of the docker image and it's still resetting the settings each time I restart the image. Thanks.
  16. If you use bridged mode, docker will create a private network with a separate IP from your unRAID subnet. If you use host mode, it will use your unRAID IP subnet. If you have your Docker set to host mode, inside Plex, what is the IP address that is listed under Settings -> Server -> Remote Access?
  17. Hello Everyone, I created a share called \Downloads. Inside Downloads I have a duplicate folder folder called Incomplete and incomplete. One was manually created and the other was created by Deluge. I guess what happened was that I manually created Incomplete, but in deluge set the folder to incomplete and for some reason it decided to create another folder but with a different case. This is causing some problems with UnRAID (SMB) and is not listing out the contents correctly. I had to manually delete the duplicate folder using MC. UPDATE: I see that Linux is case sensitive hence why this is happening: https://lime-technology.com/forum/index.php?topic=47808.0 however, it would be nice to be able to turn off case sensitivity.
  18. The danger is that even if one byte is changed on the drives while the array is paused it will invalidate the parity. It's a good feature but would be risky to use.
  19. I think I solved the issue ... I had the following veto lines in my Samba config: veto files = /._*/.DS_Store/.AppleDouble/.Trashes/.TemporaryItems/.Spotlight-V100/Thumbs.db/ delete veto files = yes This breaks OSX's copy mechanism which precreates 0KB files. If you cancel a copy, I guess because the AppleDouble meta data could not be created on the file, OSX can't clean itself up properly after a canceled copy. Removing the veto line, and reconnecting to the share, my copies now behave as expected.
  20. Hi all, When I cancel a file copy in OSX, it seems to leave behind zero byte files for the pending in queue. With other NAS software, such as Synology, or your local drive, pending files are deleted from the destination if the copy is canceled. What is interesting is that that the file in progress is properly deleted when cancelled, but not the remaining files in queue. Anyone have this issue?
  21. Hi all, I removed all the checksums from my disks, but I still have several "checkboxes" indicating the build is up-to-date. Shouldn't removing the checksums reset the state of the plug-in?
  22. Is it an Intel 520 SSD? Apparently they suffer from slow write speeds. Also with some Intel drives, the write speed is with compressible data - random data is much slower.
  23. Thanks for the link - this is my exact same scenario. I was in the process of trying that ... and for some reason, this step was not available: Go to the Main -> Array Operation section You should now have a Copy button, with a statement indicating "Copy will copy the parity information to the new parity disk". I did not have a copy button - not sure why. I rebuilt the array; unfortunately I can't try again - maybe in VM
  24. Where did you look to see that it actually said there were bad sectors on the disk? Bad connections are more common than bad disks. Please do what I asked. Sorry to be clear it was a write, not a read, as I was copying a large amount of files to the array when the drive died. I already rebooted the machine, so I assume the diagnostics are lost. The data was not critical as I am evaluating unRAID. There were pending sectors showing up on the drive. It's a 7 year old 1TB Green drive that I'm using to test out different scenarios with unRAID so I am not surprised there were bad sectors on it.
  25. There were read/write errors - bad sectors on the disk; disk still works but is on it's last legs. In this case, I would have to replace the failed data drive with an equivalent 2TB, rebuild, then upgrade the parity with a 4TB drive? Thanks.