Beiträge von Revers62

    a big thank you for trying!


    I will do :


    Code
    grep -r ata-SAMSUNG_HD204UI_S2H7J9KB700773 *

    I will find all the files that contain information on these old disks :)


    result :


    etc/smartd.conf
    etc/openmediavault/config.xml
    etc/hdparm.conf



    I had to run a smart test on these old drives without remembering....
    So smartd and OMV keeps information even if the disks are no longer present and if of course we do not unmount the discs properly like me !

    Sorry it's me !


    This old disk come from my old old nas the one who run on ubuntu with mdadm without OMV.


    I just plug it on my new nas for test a HBA.
    I see in OMV ( my new NAS ) the disk, and I reemove it.


    This disk were very old and I will not use them in my new nas.


    But Why I can see some traces of these disks in the configuration files

    Thanks Macon but I just add disk for see if my HBA work and don"t do anything in my OMV with this old disks.


    This olds disk come from a raid5 in my previous NAS build ( I was already on OMV )


    OMV write information on raid disk perhaps and my new OMV take it ?


    I do not know where to look..

    I still do not really know what to do as a permanent fix. The information in this thread is not really straight forward...but maybe I just have to read it all again.


    Is this a known problem?
    Why do people recommend snapraid/unionFS in OMV...this is running into trouble especially with novice users...


    Except of this issue I am really impressed by this system. I am sure I will solve it ;)
    Hints still welcome.

    Read post 10 + 27 = sucess


    I do not find your message very nice for developers who spend certainly much more time working on OMV than you have to fix a bug.

    Looking forward to playing with openmediavault I used old HDD from a previous NAS.
    I removed these discs since I received my new discs.


    Today when I looked at hdparm configuration files I saw references from those old drives that are no longer present in my system.



    Is there a way to clean all this?


    for example I can see reference to old drive in hdparm.conf


    You can see all old disk it's Samsung HD204UI_*




    I try to look in /dev/disk/by-id but I don't see old HD204UI




    If you can help ! I'm a newbie !
    I try to clean hdparm.conf but the reference comeback when I change an option on the OMV smart gui

    There is one caveat in that fix and it's this # This configuration file is auto-generated. Which implies that if there is an update then that file will be overwritten and you will need to do it again.
    Edit: Look at post 10 I'm sure he's a developer for Emby and post 20 by @gron who has made some modifications.

    I read the solution post10 but I have a question ! :( sorry for that


    so I have to do one "Shell-Script: / usr / bin / wait-for-mergerfs" per sharefolder ?

    all work ! it's nice !
    1 parity
    2 data disk now


    I transfert all my data to the new NAS.


    Next step add 5x data drive to the system.


    What is the best process in GUI for add a hdd when we use Mergerfs + snapraid ?

    Thanks Paradido!


    But I don't understand any rules for this free space if you have a link to check ?


    I will use my NAS with big files. +/- 50G per files


    Badblocks is running on 2x 10 Tb and a 8Tb come tomorow. long process !
    I will put
    1x 10 Tb for parity
    1x 10 Tb for data
    1x 8 Tb for data
    1x 4 Tb from my old nas but disk from last year
    1x 4 Tb from my old nas but disk from last year



    I have 5 x 4Tb on my old nas but I see max data disk for 1 parity disk is 4 data disk.
    I must buy another 10Tb for double parity and go for more data disk.


    Next week I will can play :)

    Hi all


    plan to change my NAS



    Currently I have a raid 5 on OMV 4.
    The lack of space in my current nas pushed me to invest in a supermicro SC836.
    I want to use mergerfs + snapraid to make evolution easier.



    I have some questions about this:



    how much space did you leave in the mergerfs settings (4G by default)?



    I see that the cache on the disks is not enabled by default in OMV, should it but like it or should it activate?



    I also saw that directories disappear in the sharefolders, what is the best thing to do to avoid this.



    All your advice is good to take!


    ps : I understand how work snapraid.


    Thank you

    I run Sabnzbd with Docker.
    All work nice.
    But I see we can test System performance (Pystone) and Download folder speed / Complete folder speed.


    I have 50 MB result for Download folder speed / Complete folder speed.


    it is a very low result compared to the speed of my raid. The folder is on my raid.




    It's not a problem because I don't have the fiber, just a poor 100Mb LTE connexion :)




    i have low cpu athlon X2 250 perhaps the result of the download folder speed take care of the cpu ?



    If you have some information about that I will read with pleasure. i'm a docker newbie !

    I guess updating the kernel won't help since you are using the latest.

    Hi Ryecoaaron


    I just comeback with some information, Hdparm can use --offset


    look at that !


    without offset :


    Code
    hdparm -t --direct /dev/sda
    
    
    /dev/sda:
     Timing O_DIRECT disk reads: 290 MB in  3.01 seconds =  96.42 MB/sec



    with an offset of 1G :


    Code
    hdparm -t --direct --offset 1 /dev/sda
    
    
    /dev/sda:
     Timing O_DIRECT disk reads (offset 1 GB): 380 MB in  3.07 seconds = 123.63 MB/sec
    root@nas:~# hdparm -t --direct --offset 100 /dev/sda


    and with an offset of 100G


    Code
    hdparm -t --direct --offset 100 /dev/sda
    
    
    /dev/sda:
     Timing O_DIRECT disk reads (offset 100 GB): 664 MB in  3.00 seconds = 221.13 MB/sec
    root@nas:~#


    In my test I can see good speed start at 2G offset.


    It's strange because it's an SSD and I can read :


    --offset Offsets to given number of GiB (1024*1024*1024) when performing -t timings of device reads. Speed changes (about twice) along many mechanical drives. Usually the maximum is at the beginning, but not always. Solid-state drives (SSDs) should show similar timings regardless of offset.



    I add this :


    I swap the ssd with a HDD
    All port is now on ahci


    but bad performance


    Code
    /dev/sda:
     Timing buffered disk reads: 238 MB in  3.06 seconds =  77.78 MB/sec


    this ssd is a PNY CS900 240GB SSD capable of sata 6 Gb/s but my Mb is just 3 Gb/s
    I don"t see new firmware ...



    I try some test on other disk


    sda : ssd
    sdb; hdd
    mdo : raid5 ( 5x hdd )


    mb ; M5A78L-M LX

    Yes and it is a much better option.

    I try to put ahci in my bios but when I do it I can't see the ssd.


    But I don't think this is the problem because the kernel take lead when debian boot.



    hum I will dig because I see 2 stanges thing : pata_atiixp


    strange I have just one sata controller on my MB I have 5x same seagate hdd and 1 ssd and i can see 2 'link' are in udma5 :


    Code
    sudo hdparm -I /dev/sd{a,b,c,d,e,f} | grep -i udma
            DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
            DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
            DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
            DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
            DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
            DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6

    hum waht 2 sata share an ATA ! like old ide device ! I will look in mobo option soon :


    Code
    ls -l /sys/block/sd* | sed -e 's@.*-> \.\..*/ata@/ata@' -e 's@/host@ @' -e 's@/target.*/@ @'
    /ata2 2 sda
    /ata2 2 sdb
    /ata3 1 sdc
    /ata4 3 sdd
    /ata5 4 sde
    /ata6 5 sdf

    ok I see on a bios " if you want boot on the 5 or 6 port sata" use ahci mode.
    the boot drive with OMV is on 6
    when I put ahci on port 5 and 6 the SSD drive is not listed in boot drive.


    I will change the sata port for the ssd to try.


    Do you know If I can change sata port drive without problem ?

    Hi all


    I just test speed of my disk and see SSD is slow.
    sdf is a SSD
    sde is a HDD


    result for sdf :

    Code
    ~# hdparm -t /dev/sdf
    
    
    /dev/sdf:
     Timing buffered disk reads: 236 MB in  3.08 seconds =  76.69 MB/sec
    root@nas:~# sudo hdparm -Tt /dev/sdf



    result for sde :

    Code
    hdparm -t /dev/sde
    
    
    /dev/sde:
     Timing buffered disk reads: 544 MB in  3.01 seconds = 180.73 MB/sec


    I dig a little and see that : SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode]

    Do you kow if I can safely change IDE mode to AHCI in the bios ?


    thanks to all for your help



    result of dmesg | grep -i ahci