Target Port Group (TPG) IDs Change in 'mpathadm show lu <device>' Command after Sun Storage 2500/6000 Array Reboots
(Doc ID 1445145.1)
Last updated on JUNE 30, 2019
Applies to:
Sun Storage 2540 Array - Version Not Applicable and laterSun Storage 2540-M2 Array - Version Not Applicable and later
Sun Storage 6130 Array - Version Not Applicable and later
Sun Storage 6140 Array - Version Not Applicable and later
Sun Storage 6540 Array - Version Not Applicable and later
Information in this document applies to any platform.
Symptoms
It is observed that Target Port Group (TPG) ID values, reported in mpathadm show lu <device> output under the "Target Port Groups" section, for LUN(s) from Sun Storage 2500(-M2)/6000 series arrays change after the array reboots. The TPG IDs are swapped after reboot for the respective target ports and also the order in which the TPG displayed, are swapped.
This issue occurs in all instances of Solaris 9/10 connected to Sun Storage 2500(-M2)/6000 series arrays.
However there is a difference in Solaris 11 environment:
- This symptom can be seen in a Solaris 11 host connected to Sun Storage 2500(-M2)/6000 series arrays running firmware lower than 07.84.xx.xx,
- TPG IDs remain intact if a Solaris 11 host is connected to Sun Storage 2500(-M2)/6000 series arrays running firmware 07.84.xx.xx or higher.
Before reboot:
Target port xxx4xxxxxxxxxxxx has TPG id 2
Target port xxx5xxxxxxxxxxxx has TPG id 4
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |