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A Dell R610 server with LSI 9207-8i HBA card has 6 Samsung 850 PRO SSDs connected to it.

hdparm shows TRIM support:

sudo hdparm -I /dev/sdc | grep -i trim
           *    Data Set Management TRIM supported (limit 8 blocks)

However executing the Samsung magician software on Ubuntu 14.04 returns the following error:

ERROR : This feature is not supported for disks connected to LSI RAID HBA Cards.

Neither does the fstrim command help:

fstrim: /: FITRIM ioctl failed: Operation not supported

The compatibility matrix doesn't list the Samsung 850 PRO so should I get another controller that supports this SSD for TRIM to work?

I do not need any hardware RAID capabilities and intend to configure these 6 drives with RAID 10 using mdadm.

A.Jesin
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1 Answers1

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An LSI/Broadcom 9207-8i supports TRIM only with IT firmware. So you can flash the IT firmware (see LSI/Broadcom downloads for this card) in order to gain TRIM support. However, IT firmware does not support RAID, so you will lose the RAID functionality.

GregC
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Daniël Mantione
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