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3 Posts

11-18-2019

Denmark

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RAID and JBOD

2019-11-18, 14:22 PM

Hello,

 

I just got an x3650M4/128g/2x2660/M5110e and have tried getting JBOD working without any luck.

 

Got a pair of 146gb 15k SAS disks in a mirror, and was planing to add a few 5TB sata3 disks as JBOD for use in ZFS og LizardFS, but It wont activate JBOD.  Is it that I cant mix HW RAID and JBOD, or is it something else?

 

Just want access to the plain disk from the OS, and not a bunch of VDs with a single disk in RAID0, as it will make recovery a nightmare incase of controller failure, as I cant just plug the disks into a sata port on another box and recover the data.

 

If its not possible, what route would you surgest?   Get an HBA and another backplane for the disk8-15 slots or?

 

Any help would be great.

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106 Posts

06-29-2015

United States of America

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Re: RAID and JBOD

2019-11-19, 19:12 PM

GeekCamp,

 

This M5110e RAID controller is built into the system board and it supports JBOD, but under some conditions.

 

To enable JBOD the controller cache memory module needs to be removed. If this module is removed, the controller will only support 64KB stripe size for the RAID volume and if the RAID volume were built with the cache module and different stripe size, it will not be recognized when the module is removed. The stripe size cannot be changed, the RAID volume would need to be recreated.

 

When drives are added to the system (with or without cache module) they will be set to U_GOOD, they need to be set to JBOD (if supported)

 

Here are some details:
https://lenovopress.com/tips0857-serveraid-m5110-m5110e#technical-specifications

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796 Posts

08-06-2018

United States of America

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  • Message 2 of 6

Re: RAID and JBOD

2019-11-19, 5:32 AM

Hi Sir,

 

Could you please follow below steps to confirm if the controller support JBOD or not.

1. When the ThinkSystem logo appears, press F1 to open the UEFI Setup text interface.


2. Select System Settings on the UEFI text mode main screen.


3. Select Storage.


4. The installed RAID card will be shown on the screen. Click the card to open the RAID array configuration interface.

5. Click Controller Management

6. Select Advanced Controller Properties to JBOD Mode status.

7. Change the JBOD to enable status. Click apply changes, and then save settings  

8. Go back to main menu, and then enter Drive Management. You can change the drives from Unconfigured Good to JBOD status.

 

 

 

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106 Posts

06-29-2015

United States of America

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  • Posts: 106
  • Registered: ‎06-29-2015
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  • Message 3 of 6

Re: RAID and JBOD

2019-11-19, 19:12 PM

GeekCamp,

 

This M5110e RAID controller is built into the system board and it supports JBOD, but under some conditions.

 

To enable JBOD the controller cache memory module needs to be removed. If this module is removed, the controller will only support 64KB stripe size for the RAID volume and if the RAID volume were built with the cache module and different stripe size, it will not be recognized when the module is removed. The stripe size cannot be changed, the RAID volume would need to be recreated.

 

When drives are added to the system (with or without cache module) they will be set to U_GOOD, they need to be set to JBOD (if supported)

 

Here are some details:
https://lenovopress.com/tips0857-serveraid-m5110-m5110e#technical-specifications

0 person found this solution to be helpful.

This helped me too

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3 Posts

11-18-2019

Denmark

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  • Message 4 of 6

Re: RAID and JBOD

2019-11-19, 19:23 PM

Already did the cache remove just agter i posted, and it solved the not Bering able to use jbod.

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1 Posts

03-25-2021

China

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  • Message 5 of 6

Re:RAID and JBOD

2021-03-25, 6:37 AM

Hi,

   Could you tell me how to 'remove the controller cache memory module'? Thanks.

   I want to use JBOD mode.

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796 Posts

08-06-2018

United States of America

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  • Message 6 of 6

Re:RAID and JBOD

2021-03-25, 8:55 AM

Hi Sir,

 

You can refer to ServeRAID M5100 Series Battery Kit Quick Installation Guide
https://support.lenovo.com/us/en/docs/UM104005

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