Posts by ducksama

    Hello, I just upgraded from OMV4 to OMV5 by following the instructions in this post. omv-5-0-finally-out
    Everything goes well, but when I try to access the smart function I end up with a big mistake.

    Code
    Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; smartctl -x '/dev/sda' 2>&1' with exit code '1': smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.19.0-14-amd64] (local build) Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org /dev/sda: requires option '-d cciss,N' Please specify device type with the -d option. Use smartctl -h to get a usage summary

    Smartctl is not a function I'm used to using, moreover it seems that the procedure has to be done on one of the 5 disks that make up my RAID5.


    I would like to be sure not to do anything stupid.


    If I understand correctly I'm supposed to do this command?


    smartctl -d /dev/sda cciss ? eand for the N argument ?


    Or am I completely off the mark.


    P.S: I use a non-English speaking translator, so if anything is unclear please let me know.

    You can expand the pool not only by another RAIDZ-1 (in your case), but with any kind of ZFS volume.

    SnapRaid


    My ultimate goal is to have 2 pools of 6-7 disks (in RAIDZ1 ideally). If I add a disk in another format than RAIDZ1, as a basic disk or a mirror, yes, it will be present, but not in RAIDZ1, is that it?
    If my request above is correct, you must at least add at least 3 disks for RAIDZ1.


    Regarding SnapRaid I will look at this thank you.


    Edit: Following the reading on the forum topic about snapraid and a very good comparative table, I think indeed that snapraid is the most flexible for the use I want to make. I was going to explore in this way. thanks again @cabrio_leo

    Hello,
    I come to you hoping to find the solution most suited to my needs.



    I have an HP DL380e server with 2xE5-2450L and 32 GB of ECC ram.I was thinking of going on a RAID5 mount in ext4.
    Following the advice of @cabrio_leo on other topics, I thought I was moving towards the ZFS format (32GB of ram that seems to be well suited), I was seduced by the possibilities and security that offers this format.



    Currently testing the possibilities of different formats and following the creation of a RAIDZ-1, I realized that it was not possible to enlarge a RAIDZ-1que by adding to the initial pool another RAIDZ-1 (so 3 disks minimum then again 3 discs etc ...).



    I want a solution that is at least as reliable as RAID5 and with the ability to add volumes without having to add them by 3 disks like ZFS.


    Is there currently a format compatible with OMV in the same genre as ZFS, but without the constraint of adding the disks by 3 as in the case of RAIDZ1?


    thank you in advance

    Hello,
    I come back to you to give you news. Strange fact it seems that for installation and execution, if I flow through the USB port in front of the server.



    I tried to connect the SSD on the front and the USB key on the back, the bootable key was not recognized
    So when installing OMV on the SSD the USB key on the front panel and the SSD on the rear panel works, once the installation is finished, I need to connect the SSD on the front for it to be recognized.


    My concern is solved, but I do not understand why I have to go through the USB port in front.

    As much for me :) thanks for the link to the post.

    The only reason I asked was from the above, that implies you used a USB flash drive for the install and the outcome therefore is correct. Grub expects to find the install drive and not the drive OMV has been installed on. This post and thread might be of some help

    As much for me :) thanks for the link to the post.

    You need to possibly update grub, do you install from USB or CD

    I had already thought about this possibility, looking at the documentation, it is besides that that the idea of installing debian at first metait came and made it possible to see that I had the same worries of boot . that's also why I said "as if" because it does not seem to come from grub.


    Regarding the grub, it is present on the disc. here are 2 screenshots, one showing that grub is installed on the SSD, and a second showing the result of a "parted" to verify that the SSD includes a boot part.


    If you need, I can send you the grub file



    Capture_du_2019-09-27_17-48-53.png



    Capture_du_2019-09-27_17-48-18.png

    My OMV boot concerns are not related to my p420 RAID card. I have it in my message to give you more details.


    Why did I go on the HBA mode? I wanted to have a "NAS" with a fairly large storage capacity (about 44TB).Having a fairly fast configuration and with a lot of ram, I thought to move to 2 array of 7 disks 4TB in RAIDZ.


    For that I need that the OS can handle the RAID and at the same time a machine with more than 8 sata are rare and it is often the machines with RAID cards that manage that, the card raid was therefore logical choice.



    In my previous test, I realized that even when trying to install DEBIAN on the machine, the drive was not recognized as bootable.
    After having successfully used an externally connected USB SSD which had solved my concerns, I find myself again with an unrecognized disk at boot time.


    What I would like to find and understand with your help is why it is not recognized as bootable when it has already been. I did different tests with different settings in the bios no change.


    The only difference between my current attempt and the previous one is that I remember that during my attempts, OMV could not partition the SSD, after a partition deletion and formatting in FAT from my PC, I I try to install it again and it works. I will try to do this again and keep you informed.



    I hope that from your side you can give me some tracks too.


    EDIT:
    I just deleted the partitions and format the SSD, successfully installed again successfully, and then the server did not find a bootable disk.
    it is to believe that GRUB does not settle or installs in the wrong place or badly. I can not understand why I have succeeded 1 time and nothing since.

    Hello,


    I come to you to understand and find a solution.


    I have a HP DL380e G8. After several unsuccessful installation attempts, I managed to install OVM 4 via an SSD in a USB external box. I tried to reinstall OMV4 after a bad handling making the system unstable and I find myself with the same problem. Namely after the installation of OMV succeeded and reboot to restart on the disk, it does not find a bootable disk.


    I had managed to solve this problem by going through a SSD in usb, but this solution seems to no longer work for no apparent reason.



    For information during the installation and boot no disk except the SSD are connected.



    Similarly in order to have a transparent view on the RAID, I have the p420 RAID card in HBA mode.




    P.S:Here are also the topics that I had created so that you have more information on the configuration and advice / solutions that I had already been told.


    28351-OMV-and-Raid-controller/?postID=212206#post212206
    28468-no-bootable-disk-after-installation/?postID=212314#post212314

    Hi, I'm coming to tell you that the problem is solved. Looking at the post that cabrio_leo gave me, I read that it was necessary to avoid the installation of the OS on usb key, but that a disk / sdd external usb did not pose any problems. So go buy a box 2.5 hdd / sdd and after miracle installation it boot o/


    Thank you very much for your help and your cabrio_leo tips.

    I try to boot on a ssd linked to the card raid p420 in HBA. looking for a solution I came across a debian installation tutorial on Hp microserver gen8. I would put the link at the bottom of the page, but on this tutorial it goes through the card b120i (which I also have) and set the disk on it and as bootable.




    I looked quickly on my server and it seems that the ports sata of the motherboard are not used. I also have a sata port (data + alim) for an optical drive and I was wondering if I could not use this port to install my SSD so that it is recognized by the b120i and not the p420.




    cabrio_leo I will look at your link immediately. Thank you again for your help :)




    I also apologize if I do not post the subject in the right place.






    (tutorial french) Préparation d’un HP MicroServer Gen8 pour servir de NAS

    Hello, I am currently experiencing a problem after installing OMV 4 on my server.


    Here is my server configuration:
    HP DL 380e Gen 8
    CPU: 2 x Intel XEON E5-2450L
    Ram: 32 GB DDR3 ECC
    RAID-Controller: Smart Array P420 with 1 GB Battery + B120i Cover (B120i = fake raid)
    Disk: 12 x 3.5 "+ 2 3.5"
    Network: 4 x 1 GBit
    Power supply: 750w


    After having applied cabrio_leo's advice and having passed the p420 RAID card in HBA mode and having disabled the B120i (replaced by sata AHCI) I launched the installation of OMV 4. After several tests, on disk 3.5 and SSD my The concern is that after the reboot of the machine once the installation finishes no bootable disk is found. I also tried to install Debian 9 later to be able to add OMV, but I meet the same problem.



    During my research on this problem, I read that there might be a problem of caching a previous installation, so I ran the tool "Erase Utility" and Reset all settings: NVRAM and RBSU. Without success
    This did not solve my problem. I also checked the boot order without success


    Have you ever encountered any worries or would you have any advice?

    Hello, I finally received my caddies.

    For such a big array I would not use classical mdadm RAID, because in case of a disk failure you have a very long resilvering time. Neither I would not use a hardware RAID because the OS has no control what is going behind the RAID controller.


    Your server supports ECC ram. Therefore it is predestinated for the use of ZFS. In your case I would try to activate the HBA-mode of the Smart Array P420 controller. The tool to do this is called "hpssacli", which is part of the HP service pack for Proliant. In HBA mode the controller is transparent for the OS and RAID is then managed by the OS.


    After doing that you have a perfect machine for OMV with ZFS.

    I am having trouble during the boot phase, After trying to install OMV 4 and debian 9, the installation goes smoothly and during the reboot after the installation is finished no disk is detected as bootable.


    On OMV I wondered if I did not have a problem with GRUB as it happens (indicated at the bottom of the installation documentation) as much on Debian 9 I choose the DD where should be installed GRUB and no problem is detected.


    Do you have any leads or already meet this problem? What surprises me the most is to have the problem also on the installation of debian 9 that I have already installed many times without having to worry about other machines.


    EDIT: I would try tomorrow "Erase Utility": Reset all settings: Clears all drives, NVRAM and RBSU, I read that there may be a purge problem of a previous installation. I'll let you know.

    Okay, your message brings the answers to the questions I asked myself. I'm still waiting for the delivery of my caddies to start the tests, I will give you my feedback so I hope it will be useful in turn, as you have been for me :thumbup:

    Thank you for all information and documentation, for my part I found the information on the addition of disk on this tutorial (Sorry it is in French, but the orders remain the same if she ever speak to you): tutoriel-tuto-zfs-linux (the article was last updated in June 2017). After the question is whether there is the same functionality or the tutorial that I mentioned uses just the term "Enlarge a ZPOOL" instead of "vdev"?


    Edit:
    I'm reading the documentation you gave me and it's exciting again thanks.


    i just have a question regarding the raidz if you or someone to get back to this. Here is an answer from a French speaking user found on the internet. When do you think ?




    Quote

    Basically there is no fsck for ZFS, your FS is sencé never have flaws.




    Now, it happens, especially when you have filled too much your disk, so that you have little space left for ZFS automatic "hot maintenance / repair" operations (autorepair: basically ZFS, for example in RAIDZ is able to detect an anomaly on a member of the raid (faulty block ...) and use
    another member's info to fix the problem.
    Copy of blocks, etc. If there are no more blocks available => fail, and no fsck tool to repair)

    For my part, I feel that it is not really accurate or that the information is wrong.


    Because if I refer to the documentation you sent me, this can be avoided first with "Copy-On-Write" and with "Transaction Group", "Snapshot", "Checksum," Copies ", I have not finished reading everything yet, but contrary to what I put above in quote.



    There are several tools (not necessarily all active by default but existing) to counter the lack of repair tools. Am I wrong?



    Sorry for all these questions, but not knowing how this works, I prefer to ask questions, than to start on the wrong foot or to base myself on bad information.

    Thank you for all this clarification :).


    I read some docs on if I saw well, it allows other RAIDZ1 and RAIDZ2 equivalent to RAID5 or 6, is that it?



    Because I thought I read that it was not possible to add discs directly to the pool? as far as I know the principle and advantages / disadvantages of RAID 5-6, as much if you suggest RAIDZ, I do not know.
    The idea is to gradually add hard drives to the raid. I was going for the moment on a RAID 5 base, because it might take me too much time to save to boot from a RAID 6 base.


    While waiting for answers, I will learn more about the ZFS format.


    Edit:I just saw that we can add disks to the zfs pool, I have trouble reading or my sources was unreliable.


    Edit 2 : At the moment I can not perform a test on the server yet. I think I'll come back to you when it's turned on.

    Hello, new registrant I come to see you because I will soon install OMV on a HP DL 380th GEN8.


    Here are the features of the server if you need them.


    HP DL 380e Gen 8
    CPU: 2 x Intel XEON E5-2450L
    Ram: 32 GB DDR3 ECC
    RAID-Controller: Smart Array P420 with 1 GB Battery + B120i Cover (B120i = fake raid)
    Disk: 12 x 3.5 "+ 2 3.5"
    Network: 4 x 1 GBit
    Power supply: 750w



    I'm coming to you for advice, so far I'm only using software RAID via mdam under debian stretch and not hardware RAID, off I wanted to have more than 8 disk slots on the same server which is complicated without a RAID card.
    I already have the server, but still waiting for caddies to start testing with OMV (probably version 4).the purpose of this installation is to make 2 RAID 5 of 6 4TO disks, at first I would leave on a base of 3 disks sui are the minimum for a RAID5.


    Not really knowing the hardware RAID I wanted to know if I could have tips for avoiding mistakes. I know that the CPU and Ram are disproportionate for the project, but this config was less expensive than turnkey solutions that I do not want.


    So are there important things to know about installing and configuring OMV with a RAID card?
    If ever I forgot important things do not hesitate to tell me, I will answer you as best as possible.
    I am self taught in IT and it is a personal installation and not professional.


    P.S: Sorry i do not speak english, so i dont be on the translation that google give you.