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  • raid5 disk failure.

    tkaiser - - RAID

    Post

    Quote from geaves: “In software raid simply pulling a drive from your system whilst shutdown, then switching it back on, will result in the raid being inaccessible ” Seriously? Is this expected behavior with mdraid's RAID-5 mode? Honest question since I don't know (and would've not expected such a behavior rendering the R in RAID somewhat useless)

  • OVM NIC Bonding Questions/Troubles

    tkaiser - - Network

    Post

    Quote from Muffkins90: “when i type the get-smbmultichannelconnection into PowerShell it comes up with nothing at all ” Well, then most probably there's the culprit. Sorry, no Windows expert here, I just used this feature once when the feature was pretty new (oops -- that's 6 years ago) and am since then waiting for it to appear in operating systems I like a bit more than Windows (talking about client versions here).

  • Quote from geaves: “Since this is a user help forum does it really matter that a comment and not a 'do this' or 'or that' is incorrect! ” Not at all. I just wanted to provide some guidance how to get the name of such services. But as @votdev and you pointed out it's a monit alert that can be ignored.

  • Quote from geaves: “I tried the same on my system and got the same answers ” Well, why should on your system shares with the same name exist as somewhere else. Please note the '/dev/disk/by-label/' path so obviously the label you assigned to the filesystem is the important ingredient. An example from a random OMV box next to me -- how to get the service names for the mounted filesystems: Source Code (20 lines)

  • Quote from daniel.971: “Unit mountpoint_srv_dev-disk-by-label-Data-RAID.service could not be found ” Hmm... then obviously the mount service is called differently. Please use the 'usual' attempts to get list of services with systemd and then use systemctl and journalctl to retrieve more information.

  • RAID 1: how recover RAID and data?

    tkaiser - - RAID

    Post

    Quote from Judibet: “I prefer trying to recover ” Ok, the funny part about RAID-1 is: if one disk fails in theory you have all your data still available since RAID-1 implements a mirror. You can throw one disk away and still work with the other since they should contain an identical set of data. Of course this does not work as expected since mdraid only tries to mirror data but takes not care of actually mirroring the data (it simply doesn't care about data at all) RAID-1 was ok-ish twenty years…

  • raid5 disk failure.

    tkaiser - - RAID

    Post

    Quote from JimT: “Is this the expected behavior? ” Sorry, I can't answer this since of course I do NOT use RAID-5 any more for a decade or even longer (single redundancy and large disks --> useless) IMO you should ask yourself why you're playing RAID and if the answer is data protection immediately stop and start to think about backup (that's data protection) and not availability or 'business continuity' (that's all what RAID is about)

  • RAID 1: how recover RAID and data?

    tkaiser - - RAID

    Post

    Quote from Judibet: “finish=18496.7min speed=875K/sec ” 18496.7 minutes / 60 / 24 = only ~13 days remaining. Why exactly do people prefer availability (that obviously does NOT work) over data protection? And I really don't understand why you continue to use a failed concept (RAID-1) instead of starting with backup now...

  • Quote from tobefond: “Is there a big difference in performance if I run OMV completely from SD card? ” Not at all. It really doesn't matter as long as you use our flashmemory plugin (which is active by default on all the ARM devices). Wrt nand-sata-install and the challenges involved... this is low-level stuff happening in Armbian so better visit forum.armbian.com/topic/7498-nanopc-t4/ (me still not that familiar with Rockchip boot procedures -- I start to love the Allwinner way of doing things …

  • Quote from geaves: “you can turn off the messages by going into Notifications and in the notifications tab uncheck software raid ” He's smart and does not use mdraid but btrfs' own mirror mode (differences) so I doubt you can adjust anything within 'software raid'. @daniel.971 without providing more information it's somewhat impossible to help. Source Code (2 lines)

  • RAID 1: how recover RAID and data?

    tkaiser - - RAID

    Post

    Quote from Judibet: “RAID > 0 is used to avoid Data Lost ” Wrong. If you play RAID you need backup. 'RAID > 0' is about availability and not data protection as you might be able to realize right now. Next time better implement data protection (backup) and not availability (RAID).

  • Enough of Rpi, now what?

    tkaiser - - My NAS Build

    Post

    Quote from geaves: “I take it from your image that is a 12V constant voltage switching power supply ” The above image with the 2 HDD is from my old office. The PSU in the back is a 5V/12V dual voltage PSU used to power - Banana Pi (5V) - the cheap JMB321 SATA port multiplier behind the Banana Pi (5V) - the Seagate Barracuda on the right (5V/12V) The WD Green on the left (the last WD I ever bought) is powered by another 5V/12V dual PSU from an external USB-to-SATA adapter. When you use an ODROID …

  • RAID 1: how recover RAID and data?

    tkaiser - - RAID

    Post

    Quote from Judibet: “To avoid mistake and data lost, what please I have to do? ” Do backup the next time. RAID is not backup and no one needs RAID at home.

  • Quote from tobefond: “m2.SATA ” There is no SATA with RK3399. The image has been created the Armbian way (fully automated -- we don't fiddle around with images manually, they're all created 100% from scratch and then tested afterwards) and will work when running from SD card or eMMC (when you burn it directly to eMMC using the FriendlyELEC method and in my tests also when using nand-sata-install). I also tried booting from SD card with rootfs on NVMe (works), booting from eMMC with rootfs also o…

  • Enough of Rpi, now what?

    tkaiser - - My NAS Build

    Post

    Quote from Mr.Grape: “Something like that? ” Yep. But I also lost interest soon since the SATA PM experiment (SATA port multiplier behind an USB-to-SATA bridge) seemed to be a silly idea compared to doing the same with my EspressoBin (which can even boot from a SATA HDD/SSD attached to a PM). But yes, with such a cable and 'creative' powering HC1 and a 3.5" HDD aren't a problem. But since I dealt way too often with SATA cabling and powering problems avoiding such a setup and going for a HC2 inst…

  • Enough of Rpi, now what?

    tkaiser - - My NAS Build

    Post

    Quote from Mr.Grape: “I assume that HC1 would be able to handle 3.5 if it is done by a guerrilla method using only data sata cable and a separate power supply ” The problem then is cabling since HC1/HC2 use a combined SATA data/power receptacle and at least I had a hard time finding an appropriate cable for this that separates data from power (I wanted to test cheap SATA port multipliers with my HC1 back then but did not succeed finding a cable)

  • Enough of Rpi, now what?

    tkaiser - - My NAS Build

    Post

    Quote from lucamoiana: “Are we talking about these boards? ” See the links @Mr.Grape posted (and keep in mind what @Adoby wrote wrt customs/VAT -- maybe you're also lucky) In the past you could order ODROID hardware pretty cheap from pollin.de (but due to some legislative hassles they do not ship to other EU countries any more) and with FriendlyELEC the best option was always to order directly from them. If shipping costs seem too high simply write them an email and ask for a better quote. For t…

  • Enough of Rpi, now what?

    tkaiser - - My NAS Build

    Post

    Quote from Mr.Grape: “You can aim at Odroid HC1. I have it done with 2.5 hdd and it works well. Or HC2 if you want to be free in the future for 3.5 ” BTW: I totally second that idea to spend the additional few bucks and take a HC2 even if it's now only about 2.5" disks. In 2 years most probably 10-12 TB 3.5" disks will have the best cost/capacity ratio and then being able to simply replace a small 2.5" with a large 3.5" (to backup all devices around for example) is something worth a thought. Onl…

  • Enough of Rpi, now what?

    tkaiser - - My NAS Build

    Post

    Quote from lucamoiana: “raid ” I don't need RAID at home. RAID is ONLY about availability (and with RAID5 or 6 also somewhat about data integrity). At home I'm only interested in data integrity (I hate silent data corruption since that's something you always realize way too late) and of course I'm interested in data protection. RAID provides 'business continuity' in some rare cases I really don't need. The important data here is on my laptop and an archive server (business requirement -- does no…

  • Enough of Rpi, now what?

    tkaiser - - My NAS Build

    Post

    Quote from lucamoiana: “I was curious to use Odroid but I dunno if it can handle external USB disks ” HC1 and HC2 have one USB2 port left. While you might connect an external USB hub to it I wouldn't recommend this in general for various reasons. For me physically separating backups from original data is always a must. That's why I love SBC for this use case since they're that inexpensive and energy efficient that you can put another one in another room or even another location next to you (then…