zetabax

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Posts posted by zetabax

    Installing Mikrotik's The Dude monitoring server

    in VM Engine (KVM)

    Posted

    11 hours ago, toastman said:

    "system image must be used with IDE controller".   It also might be helpful to try "USB" as the file looks to be an .img not an .iso (unless you converted it)

     

     

    Thank you for the tip.  

     

    Problem solved: The Mikrotik server isn't compatible with UEFI so I rebuilt the VM using SeaBIOS and it worked.

     

    Thanks!

    Yet Another Parity Error Thread

    in General Support

    Posted

    Hey guys,

     

    My Unraid setup consists of 12 10TB SAS drives running BTRFS with 2 parity drives.  Recently I started getting a consistent number of errors on my weekly parity check (Finding 17836 errors).  I've manually ran the checker insuring 'Write corrections to parity' is ticked but at the end of each scan i get the same number of errors.  According to SMART, all the disks appear to be in good health.

     

    I've attached the diagnosis file along with a couple of screen shots.

     

    As you'll see in the attached, I'm running a PowerEdge R730XD with a PERC controller flashed to LSI MegaRAID SAS-3 3108.

     

    Thanks in advance.

     

    image.thumb.png.de44271d0553e4366939e1fde0b39306.png

    image.thumb.png.7f4b273d463529f54003806158f081ab.png

     

    image.thumb.png.4613e65347d0a1c530efc616a1027154.png

     

    quadra-diagnostics-20210501-2117.zip

    image.png

    Installing Mikrotik's The Dude monitoring server

    in VM Engine (KVM)

    Posted

    Hi there,

     

    I'm trying to setup Mikrotik's The Dude monitoring server in KVM on Unraid.

     

    Instructions seemed pretty straight forward, download the raw disk image, set up a new Linux vm and point the disk to the folder and file that I moved into a subfolder in domains.

     

    The VM appears to setup find but no luck, I boot into the UEFI Interactive Shell (rookie move I guess)

     

    I would really appreciate it if someone could point me in the right direction please.

     

    image.thumb.png.90832e1cd73d2aa243dc38c1c0ba3fbe.png

    Understanding Error Count

    in Storage Devices and Controllers

    Posted

    Coincidentally I have a similar challenge. 

     

    I recently purchased a bunch of used SAS drives, stood Unraid, migrated a bunch of data over and decided to look into disk health.

     

    All drives check out with SMART Health Status: OK however when I dig deeper I see Non-medium error count ranges from 0 all the way up into the millions.

     

    I'm going to keep an eye on the error rate to see if it increases but I'm wondering if the Non-Medium errors are from the previous owner?

     

    I recall reading somewhere that smart errors get permanently recorded to the drive and that threes no way to clear them.

     

    Would love to hear anyones thoughts.

     

    Thanks in advance

    Write Cache filling up too fast

    in General Support

    Posted

    On 4/14/2021 at 12:10 AM, ChatNoir said:

    It is advised not to use cache for the initial data transfer since you cannot empty the cache as fast as you can fill it.

    Fair point.  Unfortunately though, i'm only dealing with 12x 10 TB 7.2K SAS drives so white performance is bound to suck.  I've quote quite a bit of data and based on my calculations, I'd be waiting a long ass time waiting for the transfer to complete.  So I went ahead and put 2x 1TB WD Blue SSDs and set them as a write cache.  The cache still fills up about only about once a day which I can live with.  RSync will fail and I wait for the mover to flush the cache, then restart RSync.  Seems to be working. 

    Write Cache filling up too fast

    in General Support

    Posted · Edited by zetabax

    Hi All,

     

    So i took the plunge and purchased a license and now i'm copying over my legally acquired collection of movies and music.

     

    Transfer speeds were brutally slow around the 250ish Mbps mark so I decided to set the share to write cache the data.  Perfect, write speeds pop up to 1.1 Gbps woo hoo!  

     

    Not so fast, despite having the mover tool set up to flush the cache hourly, my SSDs can't keep up with the network.

     

    Every hour or so my cache fills up and Rsync fails and kicks back a message similar to the following:  rsync error: error in file IO (code 11) at receiver.c (378) [receiver=3/2/3] rsync: [sender] write error: Broken pipe (32) 

     

    My question; aside from purchasing a larger SSD (current SSD is 480 GB) is there a way to throttle the connection so the mover has time to push the cash to the HDD or have rsync simply wait its turn to continue writing?

     

    ..... or am I talking EMC Netapp type enterprise features?

     

    Thanks in advance. 

    Unable to recover USB Backup - steps in forum aren't working

    in General Support

    Posted

    Ok, so heres the latest.

     

    I went back to basics and scanned the USB stick for errors which there were some.  Ran the fix disk error wizard and voila, no more kernel panics.

     

    The new problem is the Web UI won't start and while I can ping and SSH the box, I can not access my data because (me in my infinite wisdom) never set the array to auto start.

     

    Screen shot of my mount status below.

     

    Would love some suggestions please!

     

     

    image.thumb.png.b45576be85e3426704cd6a072ec97fd5.png

     

    Unable to recover USB Backup - steps in forum aren't working

    in General Support

    Posted

    Hi there,

     

    The other day I received an alert that my USB boot drive was near failure so I created a new backup and used the USB Creator App to fancy myself a new one as per the instructions.

     

    I then rebooted the server with the new USB stick and got the following kernel panic, "end kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0,0)"

     

    I tried rebooting with the same result, then went back to the original USB which resulted in the same kernel panic.

     

    I then created a new USB (different stick) based on a backup from 3 days ago with the same result.

     

    Because all i care about is the data, i created another brand new USB based on the instructions Files on the "Files on v6 boot drive - Unraid | Docs" only copying super.dat and disk.cfg but upon reboot the drives are there but it doesn't recognize btrfs configuration.

     

    I've tried using a medley of usb sticks and even recreated the USB using the manual method.

     

    Looking for suggestions please.

     

    ZFS Plugin or should i just stick with BTRFS

    in Pre-Sales Support

    Posted

    No, not yet - I'm still debating but leaning towards waiting for the Linux version of TrueNAS (Scale) to be released this summer.

     

    I've been testing Unraid and while it offers some great featured, I still feel as though the platform is still beta.  Adding ZFS to the mix makes it unsupported and therefore alpha IMO. 

     

    I think the platform has tons of promise but the developers need to get with the times and support something other than USB boot.  Right now, ZFS is a deal breaker and BTRFS just doesn't offer the rich features of ZFS.  Also, key plugins like Krusader just aren't there yet. 

     

    I can't justify paying a premium for something that doesn't meet the majority of my requirements.

     

    Will try again in a few years.

     

    Peace  

    ZFS plugin for unRAID

    in Plugin Support

    Posted

    Hi there,

     

    I'm about to make the switch from TrueNAS to Unraid after spending several painful months fighting with poorly written free software.  That said, the one thing I really liked about it was ZFS.  I've been reading / watching various tutorials on setting ZFS up on Unraid and looks pretty straight forward to get up and running.

     

    One of the nice things about TrueNAS and ZFS is you could blow away your config, reinstall and all you needed to do was simply import the ZFS volume and you were back in business.

     

    My question.... can anyone out there who currently runs the ZFS plugin on Unraif provide some guidance on how difficult it is to manage / recover a ZFS volume in Unraid when something like a power failure abruptly takes out the Unraid configuration?

     

    I don't want to create a giant make work recovery project (in the event a piece of hardware fails) if sticking with native BTRFS is the safer path. 

    ZFS Plugin or should i just stick with BTRFS

    in Pre-Sales Support

    Posted

    Hi there,

     

    I'm about to make the switch from TrueNAS to Unraid after spending several painful months fighting with poorly written free software.  That said, the one thing I really liked about it was ZFS.  I've been reading / watching various tutorials on setting ZFS up on Unraid and looks pretty straight forward to get up and running.

     

    One of the nice things about TrueNAS and ZFS is you could blow away your config, reinstall and all you needed to do was simply import the ZFS volume and you were back in business.

     

    My question.... can anyone out there who currently runs the ZFS plugin on Unraif provide some guidance on how difficult it is to manage / recover a ZFS volume in Unraid when something like a power failure abruptly takes out the Unraid configuration?

     

    I don't want to create a giant make work recovery project (in the event a piece of hardware fails) if sticking with native BTRFS is the safer path. 

     

    Boot from Dell Dual SD Card

    in Pre-Sales Support

    Posted

    1 minute ago, jonathanm said:

    Which model? Try google search 

    
site:unraid.net poweredge

    and add your specific model, like r720. Some models are more difficult to get running than others.

    Yes, apparently UEFI is not supported on enterprise equipment. 🤷‍♂️

    image.png

    Boot from Dell Dual SD Card

    in Pre-Sales Support

    Posted · Edited by zetabax

    33 minutes ago, prostuff1 said:

    But it is, with the way the current license model works.

     

    I don't understand how/why it is so hard to purchase a small USB flash drive and boot from that? I'm not trying to be a pain in the butt, just honestly trying to understand why you want this SD module thing working so badly.  The USB license model has been in place for a LONG time at this point and is pretty darn reliable.

    Fair question; I have an enterprise class device sitting in my basement and I want to use the technology to its fullest.  Booting from a USB stick is not industry best practices.  Plus, i've been trying to get the PowerEdge to boot the Unraid USB for 2 days without any success.  I've tried BIOS and UEFI and still I get errors like this is not a bootable disk, etc. Meanwhile I can boot the stick up from my PC.  And yes, I've tried multiple USB sticks.  And yes i'm able to boot other installers from USB (specifically ESXi, Windows Server, etc)  I hate USB sticks!