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raid

8 Topics

ReadyNAS 4312 (or similar) - RAID config and expansion
Hi, I need help with a decision. We'd like 20TB of storage for both iSCSI LUN HyperV VHD virtualisation and general SMB3 data (with snapshots). One volume. The 12 bay RR4312S is a model we are familar with. We'd like the space to be easily upgradable in the future - cost is a consideration right now or we'd use bigger disks right away. We want to use RAID10. Is RAID10 an XRAID option? Whenever I've tried on the online calculator XRAID RAID 6 is chosen each time. So, if RAID10 isn't an XRAID option what do I do? Which is the best suggestion for populating it now with an eye on the future (4 years hence) in terms of expanding Flex Raid. Is Vertical less hassle than Horizontal? Therefore should we fill all 12 bays now then add bigger disks one by one in the future - i.e. vertically? Or do we leave chassis space for a horizontal expansion? Many thanks, Andy.
flattened
Apr 23, 2018 Place Use your ReadyNAS
1.2KViews
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Dual RR4312X replacement for Multiple desktop NAS models - best RAID Level /Hard drives to use?
we own multiple desktop readynas boxes of different drive sizes (see photo) and are looking to consolidate into 2 new RR4312X models that will be located in 2 different offices with the idea of Nightly replication/Rsync (data identical -users access their local NAS) Currently the NAS support 40TB each (about 27TB used 12TB Free) Raid-6 on 8 bay 528X/628X with 2 EDA500 (different volume) for a total of 12 bays each.. For the new 4312X We are debating if we should just continue using RAID6 with the nightly replication or if Raid50/60 would be a better choice for performance given the nightly replication between NAS boxes (Raid10 takes away too much capacity) The other issue some of the hard drives are older (anything under 4TB has a few ATA errors & only shows a few timeouts during rebuilds) We are also trying to figure out the best way to expand the capicity of both of the new NAS servers to the same storage space (taking into account the HD's we already own) for example would it be better buying more lower cost 6/8TB given our current configuration - instead of fewer 12TB etc. thanks
kevinfor2014
Feb 15, 2018 Place Use your ReadyNAS
592Views
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1Comment
ReadyNas516 RAID
Hi I had a question, i have 3 drive in my ReadyNAS 2TB, 4TB and 4TB. They are currently setup as RAID 5. I have couple of questions If I disconnect the 2TB will my data still exist? Can i make the 2TB into just another drive and not use for RAID, I was to use the 4TB just for RAID, is this possible? Please advice Thank You Aaseef Shaikh
aaseef021
Dec 14, 2017 Place Use your ReadyNAS
2.1KViews
0likes
16Comments
Readynas 102 restarts services constantly - unable to access data.
My ReadyNas 102 running firmware 6.7.4, seems to be constantly restarting services. I'm sometimes able to see the shares... sometimes even get a few files..., but then it "disappears" and the network location is gone. ... until a minute or so later. Even the web-ui ... I'm sometimes able to see the status-screen before it jumps back into a loading-page waiting for the ui to become responsive again. I've tried reinstalling the OS, but it didn't work. I was thinking about flashing new firmware, but that requires the services to be open long enough for the process to finish.... Is it possible to connect the drive to a computer - windows or linux... and get the data through USB? The drive seems to be ok, although; It's the remains of a degraded RAID-1 setup. Thanks for all advice..
Solved
knutivars
Oct 02, 2017 Place Use your ReadyNAS
1.4KViews
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6Comments
Think twice before committing to X-RAID or RAID-5. What is your recovery plan?
TL;DR: Because I chose RAID-1 over X-RAID, I easily survived a disk failure. I'm back to having a working RAID-1 array, with no loss of data, no support contract, no data recovery fees, no proprietary programs, no shipping drives across the country, and my only cost (besides the replacement drive, of course) was a single SATA-to-USB device ($30). What worked? Boot up with Active@ LiveCD (http://www.livecd.com/) and use the File Manager. 5 years ago, when I bought my ReadyNAS, I engaged in these forums a debate between RAID-1 and X-RAID. My #1 priority was ability to recover data after a failure, while other people focused on maximizing disk space. Well, finally, one of my disks failed recently. No warning ahead of time, no SMART data indicating a disk might fail, just "Disk failure detected" in the logs after it was too late. My shares or volumes were inaccessible via normal Windows networking, and not available in RAIDiator either. There was no indication whether my data was still intact or not. Because I was using RAID-1, I believed that the good disk should still be OK, the hard part was figuring out how to read it. I connected the working drive to my laptop using a SATA-to-USB converter. Many software ideas did not work because the RAID data volume is seen as RAW and not Ext4, so Ext4 readers in Windows don't work. In the end it was one of the simplest options: I booted up using the Active@ LiveCD with the drive already attached. Once booted, the simple Linux File Manager ("Dolphin") was able to see and read all my files perfectly. I did NOT need any of the proprietary software on the CD, just the simple File Manager. And of course, it was possible to plug in a portable drive and copy everything from the source drive to the portable backup. Easy and Free. (I will also note that the basic file manager on the UFS Explorer emergency CD worked as well, although I found Dolphin slightly easier to use) (Later, I also found out that the volumes and shares were all available directly from the NAS after removing the failed drive. In other words, when the good drive was by itself without a failed mirror drive, the NAS made all the data and files available again, with an "unprotected" warning. So essentially, you don't even need a LiveCD... but the biggest advantage is being able to copy data at USB3 speed) Finally, restoring the NAS to RAID-1 was incredibly easy. I put the good drive back into its original slot on the ReadyNAS, ordered a replacement drive (same make and model as the failed drive), and popped it in. The ReadyNAS immediately began copying everything, it had a percentage indicator on the front panel, and only took about 10 hours to mirror 2.7 GB of data. Contrast this with the restoration of an X-RAID array. Start with trying to connect 3 drives to a laptop, plus a portable backup drive. You can easily run out of ports (especially at USB3 speed) or power outlets to plug everything in. Sure you can overcvome this but you're paying for SATA-to-USB enclosures, USB hubs, power strips, etc. Now, is there a definitive guide to restoring an XRAID array to read its data? Not from Netgear. There are some helpful tips and recommendations in these forums but certainly nothing that is foolproof or easy. There is a good chance you'll need to learn to use mdadm. And if it isn't working, is it because the array is not set up correctly, or the data itself is corrupted. Assuming you aren't a full time data recovery expert, how would you tell? There are many more reports of destroyed, overwritten and lost data, or expensive support contracts, than there are of successful DIY recoveries. And if it isn't DIY, it's certainly going to be expensive and often require you to send the physical drives somewhere. Bottom line: after going through this process, I am more convinced than ever that RAID-1 is superior to any other RAID option, unless your data is disposable or 100% backed up in real-time. RAID-1 is not failsafe of course (fire, theft, deleting/overwriting a file, etc), but it is just as compatible with any other backup methods (2nd NAS, drive-swapping, portable backup drives, rsync, cloud storage) as any other RAID type, PLUS you get the benefit of the easiest and fastest recovery process in the case of a drive failure. I would also like to thank StephenB for participating in the initial debate. His ability to see the pros and cons of both methods was appreciated.
illmatic
Jun 26, 2017 Place New ReadyNAS Users & General Discussion
14KViews
2likes
3Comments
RAID 1 Issue - Volume Degraded after HDD replacement
I hava ReadyNAS 104 with firmware 6.6.1. Inside it I had 1 TB, 1TB, 3 TB and 6 TB HDDs, the two first configured as RAID 1. I had a RAID 1 with 2 HDD of 1TB, but one of them stop working. While I receive a new one, a replace the broken one with a 2 TB HDD (I know I'm loosing 1 TB of space). It was detected as part of the RAID 1, and started syncronizing. After it was sincronized, the HDD status change from SYNC to ONLINE, but the volume status is DEGRADED. I think the problem is that the 2 TB HDD is set as SPARE instead of ACTIVE SYNC. If you get the raid detail you see that there are 2 working devices, but only 1 active devices. As you can see, the status is clean,degraded. # /sbin/mdadm --detail /dev/md125 /dev/md125: Version : 1.2 Creation Time : Thu May 28 13:29:45 2015 Raid Level : raid1 Array Size : 971912832 (926.89 GiB 995.24 GB) Used Dev Size : 971912832 (926.89 GiB 995.24 GB) Raid Devices : 2 Total Devices : 2 Persistence : Superblock is persistent Update Time : Tue Apr 25 09:51:21 2017 State : clean, degraded Active Devices : 1 Working Devices : 2 Failed Devices : 0 Spare Devices : 1 Name : 2fe53622:Personal-0 (local to host 2fe53622) UUID : e9cdfd26:c97e9f56:51e0ac36:3c2bb179 Events : 116364 Number Major Minor RaidDevice State 0 8 51 0 active sync /dev/sdd3 2 0 0 2 removed 1 8 67 - spare /dev/sde3 Can anyone help me?
risiman
Apr 27, 2017 Place Use your ReadyNAS
5.2KViews
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9Comments
ReadyNAS NV+ Freezing/Locking up. Diagnostic Help Please!
Hey Guys, My reliable ReadyNAS has been given me issues this last week. It's a ReadyNAS NV+ v1 loaded with 4x2TB WD Green drives. FW is current at 4.1.14. I'm posting here becasue I found this thread: https://community.netgear.com/t5/ReadyNAS-Hardware-Compatibility/ReadyNAS-NV-hangs-freezes-please-help-diagnose-24042647/td-p/931232 Which is the identical symptoms I am getting from my unit. The unit boots, starts a FS and Quota check since I had to hard unplug it due to the power button being non-responsive since this started happening. After the 2 hours that check takes to complete, I can access shares/web console etc for about 30 min. Then the activity lights stop, the power button becomes unresponsive, and share access stops. In the thread linked above, it looks like there was 'Current_Pending_Sector' value which indicated a failing/bad disk. I'm hoping having someone's input on the logs will point at the same issue with mine and not some logic board issues or hardware problem. Keeping the data intact and accessible is my priority at this point. I have been able to extract the logs and loaded them here: https://drive.google.com/file/d/0B7tgX-P1b8UgbTA3blk2VWZ1TkE/view?usp=sharing Any input would be greatly appreacited. Thanks -ken
canadianken
Nov 28, 2015 Place New ReadyNAS Users & General Discussion
3.7KViews
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10Comments
Recover from BTRFS RAID
Hello all After attempting all official methods to revive a Netgear RN-102ND NAS, I've removed the single WD 3TB Green drive to recover its data. Slaving it to a Windows PC, I open a popular program around here called Sysinternals Linux Reader for recovery. However upon attempting to open a partition for reading, a dialogue appears stating "can't open disk: Btrfs Volume 1 (0e34c953:data, raid) Check the disk and try again". SMART attributes are good, but I am about to run a bad sector scan. Can anybody shed any light on whether this has occured to them and what they did to overcome (if at all)? Richard
corigins23
Oct 10, 2015 Place Use your ReadyNAS
3.2KViews
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2Comments