How to know I have raid or hardware raid?

Comments

• Jord Moderator, Host Rep, Megathread Squad

  September 2019

  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.

  Thanked by 1Oldmanasking
• rcxb Member

  September 2019 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
• raindog308 Administrator, Veteran

  September 2019

  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
• mrclown Member

  September 2019

  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.

  Thanked by 1Oldmanasking
• GuyP Member

  September 2019 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
• Oldmanasking Member

  September 2019

  @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
• aveline Member, Patron Provider

  September 2019

  @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
• jsg Member, Resident Benchmarker

  September 2019

  dmidecode

  Thanked by 2skorous uptime
• Oldmanasking Member

  October 2019

  @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 .
• Clouvider Member, Patron Provider

  October 2019

  @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.