Server I/O (GAD status: Mirroring or Quorum disk blocked or no quorum disk volume)

Ops Center High Availability User Guide

Version
10.9.x
File Size
3.9 MB
Audience
anonymous
Part Number
MK-99ADM003-14

When the GAD status is Mirroring or Quorum disk blocked, and the I/O mode for the S-VOL is Block. The I/O mode and the I/O flow vary depending on the microcode or firmware version.

When the GAD status is Mirroring or Quorum disk blocked or no volume is set for the quorum disk, the I/O mode for the P-VOL is Mirror(RL), and the I/O mode for the S-VOL is Mirror(RL).

Write requests are written to both pair volumes and then the write-completed response is returned to the server.



Read requests are read by the P-VOL or S-VOL and then sent to the server.