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LSI Raid problem [SOLVED]
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pigreco
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Posts: 223
Location: Italia

PostPosted: Thu Aug 21, 2014 2:57 pm    Post subject: LSI Raid problem [SOLVED] Reply with quote

Hi,

I have two identical servers
Quote:
PowerEdge1850 with PERC 4e/Si raid adapters
.
Code:
~ # lspci -nn | grep RAID
02:0e.0 RAID bus controller [0104]: Dell PowerEdge Expandable RAID controller 4 [1028:0013] (rev 06)

Code:
 ~ # cat /proc/devices
Character devices:
  1 mem
  4 /dev/vc/0
  4 tty
  4 ttyS
  5 /dev/tty
  5 /dev/console
  5 /dev/ptmx
  7 vcs
 10 misc
 13 input
 14 sound
 21 sg
 29 fb
128 ptm
136 pts
180 usb
189 usb_device
246 ipmidev
247 ql2xapidev
248 aac
249 gdth
250 hidraw
251 megaraid_sas_ioctl
252 megadev_legacy
253 bsg
254 watchdog
....



I have installed necessary kernel modules, gentoo packages and LSI software megactl-0.4.1 http://hwraid.le-vert.net/wiki/LSIMegaRAID#a3.4.Aboutdevmegadev0 for usage and monitoring the controller:
Code:

*  sys-block/megamgr
      Latest version available: 5.20-r2
      Latest version installed: 5.20-r2
      Size of files: 247 kB
      Homepage:      http://www.lsi.com
      Description:   LSI Logic MegaRAID Text User Interface management tool
      License:       LSI

*  sys-block/megarc
      Latest version available: 1.11-r1
      Latest version installed: 1.11-r1
      Size of files: 294 kB
      Homepage:      http://www.lsi.com
      Description:   LSI Logic MegaRAID Text User Interface management tool
      License:       LSI

...
sys-block/lsiutil
      Latest version available: 1.62-r1
      Latest version installed: 1.62-r1
      Size of files: 2,289 kB
      Homepage:      http://www.lsi.com/
      Description:   LSI Logic Fusion MPT Command Line Interface management tool
      License:       LSI


but I can monitor the array status only one of the two servers without problem the other not work:

Code:
megarc -ldInfo -l0 -a0


   **********************************************************************
         MEGARC MegaRAID Configuration Utility(LINUX)-1.11(12-07-2004)     
         By LSI Logic Corp.,USA
   **********************************************************************
     [Note: For SATA-2, 4 and 6 channel controllers, please specify
     Ch=0 Id=0..15 for specifying physical drive(Ch=channel, Id=Target)]

   Type ? as command line arg for help

   No Adapters Found   

   Error: No MegaRaid Found

Code:
/opt/bin/lsiutil

LSI Logic MPT Configuration Utility, Version 1.62, January 14, 2009

0 MPT Ports found


and megactl, megarpt commands not give me any output:

Quote:

~ # /root/megactl-0.4.1/megactl
~ # /root/megactl-0.4.1/megarpt


the device /dev/megraid0 seems to be 0
Code:
 ~ # ls -lah /dev/ | grep mega
crw-r--r--  1 root root   252,   0 Aug 21 15:58 megadev0
cr--------  1 root root   251,   0 Mar 20 19:57 megaraid_sas_ioctl_node


after some internet research i have tried with command:
Code:
mknod /dev/megadev0 c `cat /proc/devices | gawk '/megadev/{print$1}'` 0 2>/dev/null

without any changes.

Anyone can help me? any suggestion is appreciated, thanks in advance,
regards Maurizio


Last edited by pigreco on Mon Feb 23, 2015 9:32 am; edited 1 time in total
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 43178
Location: 56N 3W

PostPosted: Thu Aug 21, 2014 4:20 pm    Post subject: Reply with quote

pigreco,

Do you have kernel support for the LSI Megaraid?
Is it built an a module but not loaded?
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
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pigreco
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Posts: 223
Location: Italia

PostPosted: Fri Aug 22, 2014 12:05 am    Post subject: Reply with quote

hi, the LSI modules are built in

Code:
linux # cat /usr/src/linux/.config | grep MEGA
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=y
CONFIG_MEGARAID_MAILBOX=y
CONFIG_MEGARAID_LEGACY=y
CONFIG_MEGARAID_SAS=y
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gentoo-freak
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Joined: 11 Sep 2009
Posts: 16

PostPosted: Sun Feb 22, 2015 2:17 pm    Post subject: should we meh here to? Reply with quote

Code:

zcat /proc/config.gz | grep -ie MEGA
CONFIG_MEGARAID_LEGACY=m
CONFIG_MEGARAID_SAS=m


but without
Code:

# CONFIG_MEGARAID_NEWGEN is not set


Code:

megaraid_sas           72067  1
megaraid               28782  0


Code:

jfr:
echo 1 > /sys/block/sdX/device/rescan


any progress on this ? any suggestions wich tools worked well ? any libs other than pymegacli ?

cheers
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pigreco
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Posts: 223
Location: Italia

PostPosted: Mon Feb 23, 2015 9:32 am    Post subject: Reply with quote

Hi,
I am sorry that I have not updated the discussion, I forgot.

My raid hardware had problems, after having solved working properly

Code:
megarc -ldInfo -l0 -a0


   **********************************************************************
         MEGARC MegaRAID Configuration Utility(LINUX)-1.11(12-07-2004)     
         By LSI Logic Corp.,USA
   **********************************************************************
     [Note: For SATA-2, 4 and 6 channel controllers, please specify
     Ch=0 Id=0..15 for specifying physical drive(Ch=channel, Id=Target)]

   Type ? as command line arg for help


   Finding Devices On Each MegaRAID Adapter...
   Scanning Ha 0, Chnl 0 Target 15 

      *******Information Of Logical Drive 0*******

     Logical Drive : 0( Adapter: 0 ):  Status: OPTIMAL
   ---------------------------------------------------
   SpanDepth :01     RaidLevel: 1  RdAhead : Adaptive  Cache: DirectIo
   StripSz   :064KB   Stripes  : 2  WrPolicy: WriteBack

   Logical Drive 0 : SpanLevel_0 Disks
   Chnl  Target  StartBlock   Blocks      Physical Target Status
   ----  ------  ----------   ------      ----------------------
   0      00    0x00000000   0x087be000   ONLINE
   0      01    0x00000000   0x087be000   ONLINE


regards,
Maurizio
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