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Reviewed-by: Muller, Martin <martin.muller@t-systems.com>
Co-authored-by: lizaoxu <lizaoxu@huawei.com>
Co-committed-by: lizaoxu <lizaoxu@huawei.com>

2025-07-11 13:44:58 +00:00

Why Do Some of My EVS Disks Not Have WWN Information?

EVS disks have two device types: VBD and SCSI. WWNs are used as the unique identifiers for SCSI EVS disks, and VBD EVS disks do not have WWNs.

You can view the WWN of a SCSI EVS disk on the console. The details are as follows:

If the SCSI EVS disk is brand new, you can view the disk WWN on the disk details page.
Figure 1 shows the query result.
Figure 1 Queried WWN information
If the SCSI EVS disk was created before the WWN feature rollout, the disk WWN will fail to be obtained.
Figure 2 shows the query result.

Figure 2 No WWN information

Parent topic: General