Global-active device status and I/O allowance by access attribute

Ops Center High Availability User Guide

Version
10.8.x
File Size
3.9 MB
Audience
anonymous
Part Number
MK-99ADM003-10

Even when the access attribute is assigned to a GAD volume, the initial copy and pair resynchronization operations are not controlled. The following table shows whether server I/O is allowed for the listed GAD status and access attribute.

GAD statuses

Access attribute

I/O

P-VOL

S-VOL

P-VOL

S-VOL

Mirrored

Read/Write

Read/Write

Ends normally

Ends normally

Read Only or Protect

Read/Write

Depends on the attribute*

Ends normally

Read/Write

Read Only or Protect

Ends normally

Depends on the attribute*

Read Only or Protect

Read Only or Protect

Depends on the attribute*

Depends on the attribute*

Quorum disk blocked or no quorum disk volume

Read/Write

Read/Write

Ends normally

Ends normally

Read Only or Protect

Read/Write

Depends on the attribute*

Ends normally

Read/Write

Read Only or Protect

Ends normally

Depends on the attribute*

Read Only or Protect

Read Only or Protect

Depends on the attribute*

Depends on the attribute*

Mirroring

Suspended (when the I/O mode of the primary volume is Local and the I/O mode of the secondary volume is Block)

Read/Write

Read/Write

Ends normally

Rejected

Read Only or Protect

Read/Write

Depends on the attribute*

Rejected

Read/Write

Read Only or Protect

Ends normally

Rejected

Read Only or Protect

Read Only or Protect

Depends on the attribute*

Rejected

Suspended (when the I/O mode of the primary volume is Block and the I/O mode of the secondary volume is Local)

Read/Write

Read/Write

Rejected

Ends normally

Read Only or Protect

Read/Write

Rejected

Ends normally

Read/Write

Read Only or Protect

Rejected

Depends on the attribute*

Read Only or Protect

Read Only or Protect

Rejected

Depends on the attribute*

Block

Read/Write

Read/Write

Rejected

Rejected

Read Only or Protect

Read/Write

Rejected

Rejected

Read/Write

Read Only or Protect

Rejected

Rejected

Read Only or Protect

Read Only or Protect

Rejected

Rejected

* If the attribute is Read Only, Read is allowed but not Write. If the attribute is Protect, Read and Write are not allowed.