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How to know I have raid or hardware raid?
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How to know I have raid or hardware raid?

Without asking the provider is there any way I can ssh and get information if I have Raid set up and if it is a hardware raid ?

I am an old man please bear with me :)

Comments

  • JordJord Moderator, Provider

    Who's the server with? It will normally tell you on the pricing. If it doesn't say Hardware raid it normally means it's just software.

    You can run this cat /proc/mdstat and see what it says.

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  • rcxbrcxb Member
    edited September 2019

    smartctl -a /dev/sda is a good one. It won't return drive details through a hardware RAID controller until you add a -d +arg to it.

    Also, lspci will show you what controller cards are in the system, which can be matched up to lsscsi drives.

    Thanked by 1Oldmanasking
  • Jord said: You can run this cat /proc/mdstat and see what it says.

    That's definitive...in fact, I don't think mdadm even has a list command - they just tell you to look at mdstat.

    @Oldmanasking, if you see something like this, it's software raid:

    Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10] 
    md0 : active raid1 sdc1[1] sdd1[0]
          233899840 blocks super 1.0 [2/2] [UU]
          bitmap: 1/2 pages [4KB], 65536KB chunk
    

    If you don't see any mdXX devices, it's not.

    Thanked by 1Oldmanasking

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  • As above if you don't see any in mdstat..

    Request for IPMI and dig details what kind of HW Raid you have configured. You should understand the arrays configured.

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  • GuyPGuyP Member
    edited September 2019

    Depending on the controller there's likely a command line utility. For example, lspci tells me the following:

    boxn:~# lspci | grep -i storage
    01:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1064ET PCI-Express Fusion-MPT SAS (rev 08)
    boxn:~#
    

    There's a utility called lsiutil for LSI raid cards:

    boxn:~/lsiutil/Linux# ./lsiutil.x86_64
    
    LSI Logic MPT Configuration Utility, Version 1.62, January 14, 2009
    
    1 MPT Port found
    
         Port Name         Chip Vendor/Type/Rev    MPT Rev  Firmware Rev  IOC
     1.  /proc/mpt/ioc0    LSI Logic SAS1064E B3     105      011e0000     0
    
    Select a device:  [1-1 or 0 to quit]
    

    Also, why don't code tags work properly? The ticks don't work either. What's the correct way to post code on this forum? Got it. Use pre tags, not code.

    Thanked by 1Oldmanasking
  • @Jord said:
    Who's the server with? It will normally tell you on the pricing. If it doesn't say Hardware raid it normally means it's just software.

    You can run this cat /proc/mdstat and see what it says.

    www.internetbrothers.co.kr and they tell me they have assigned a hardware raid I just want to know by myself

    I am an old man please bear with me :)

  • avelineaveline Member, Provider

    @Oldmanasking said:

    @Jord said:
    Who's the server with? It will normally tell you on the pricing. If it doesn't say Hardware raid it normally means it's just software.

    You can run this cat /proc/mdstat and see what it says.

    www.internetbrothers.co.kr and they tell me they have assigned a hardware raid I just want to know by myself

    What service are you using? VPS or Dedicated Server?

    If it's a VPS, you can't know whether they're using RAID or not.

    Thanked by 1Oldmanasking

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  • @Oldmanasking said:

    @Jord said:
    Who's the server with? It will normally tell you on the pricing. If it doesn't say Hardware raid it normally means it's just software.

    You can run this cat /proc/mdstat and see what it says.

    www.internetbrothers.co.kr and they tell me they have assigned a hardware raid I just want to know by myself

    This is about my dedicated server .

    I am an old man please bear with me :)

  • ClouviderClouvider Member, Provider

    @Oldmanasking said:

    @Oldmanasking said:

    @Jord said:
    Who's the server with? It will normally tell you on the pricing. If it doesn't say Hardware raid it normally means it's just software.

    You can run this cat /proc/mdstat and see what it says.

    www.internetbrothers.co.kr and they tell me they have assigned a hardware raid I just want to know by myself

    This is about my dedicated server .

    So follow the several valid options others have provided above.

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