XtremIO, X2 SSD Endurance is 85% or lower on all SSDs within the first 2 years of use

Summary: On X2 arrays, SSD endurance is showing 85% or less on all SSDs after 2 years or less of use

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Symptoms

-May occur with X2 arrays on code prior to 6.3.2-10 only
-show-ssds shows all SSDs with endurance levels in the mid to low 80 percentile after having been used for only a couple years. 
xmcli (tech@manhattan)> show-ssds *some fields removed for easier visibility of relevant data points*
Name                 Index   Brick-Name Index Slot Model-Name FW-Version                          Endurance-Remaining-% 
wwn-0x58ce38ee20c15429 1     X1         1     0    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         82
wwn-0x58ce38ee20dcb4ad 2     X1         1     1    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         82
wwn-0x58ce38ee20dcb4c1 3     X1         1     2    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         86
wwn-0x58ce38ee20dcb4c9 4     X1         1     3    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         86
wwn-0x58ce38ee20c15421 5     X1         1     4    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         83
wwn-0x58ce38ee20dcb4d5 6     X1         1     5    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         86
wwn-0x58ce38ee20dcb521 7     X1         1     6    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         82
wwn-0x58ce38ee20dcb51d 8     X1         1     7    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         83
wwn-0x58ce38ee20c153cd 9     X1         1     8    TOSHIBA    PB4B  no_error *** TOSHIBA    healthy         84
...

Cause

FW-Version: "PB4B" is prone to this endurance issue. It has been fixed in FW-Version PB4F which is included in XtremIO version 6.3.x

Resolution

Upgrade X2 cluster to XIOS code 6.3.x as soon as possible.

Additional Information

Important: Upgrading to the fix version indicated in the Resolution section does not change the endurance. It simply reduces the rate of endurance degradation.

Affected Products

XtremIO HW X2-R, XtremIO HW X2-R Encrypt Disable, XtremIO HW X2-S, XtremIO HW X2-S Encrypt Disable, XtremIO HW X2-T, XtremIO HW X2-T Encrypt Disable, XtremIO X2
Article Properties
Article Number: 000189149
Article Type: Solution
Last Modified: 10 May 2026
Version:  4
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