GAD operations and Thin Image Advanced pair status

CPPD

Yes

Yes

Yes

Yes

No³

Yes

Yes

Yes

PAIR

Yes

Yes

Yes

Yes

No³

Yes

Yes

Yes

PSUP

Yes

Yes

Yes

Yes

No³

Yes

Yes

No

CPYP

PSUS

Yes

Yes

Yes

Yes

No³

Yes

Yes

Yes

CPRS

Yes

Yes

Yes

Yes

No³

Yes

Yes

Yes

RCPY

No⁴

impossible

impossible

Yes

No³

Yes

No⁴

No⁴

SMPP

Yes

Yes

Yes

Yes

No³

Yes

Yes

Yes

PSUE

Yes

Yes

Yes

Yes

No³

Yes

Yes

Yes

Notes:

1. You can delete a GAD pair by specifying the P-VOL, only when the I/O mode is Local and the GAD pair status of the P-VOL is PSUS or PSUE.
2. You can delete a GAD pair by specifying the S-VOL, only when the I/O mode is Local and the GAD pair status of the S-VOL is SSWS.
3. Cannot be used because, when you delete a GAD pair specifying the S-VOL, the P-VOL's virtual LDEV ID is also deleted, which makes it unusable as the Thin Image Advanced P-VOL.
4. To continue resynchronizing the Thin Image Advanced pair, you must split the GAD pair.

CPPD

No³

Yes

Yes

No⁴

Yes

Yes

Yes

Yes

PAIR

No³

Yes

Yes

No⁴

Yes

Yes

Yes

Yes

PSUP

No³

Yes

Yes

No⁴

Yes

Yes

No

Yes

CPYP

No³

Yes

Yes

No⁴

Yes

Yes

Yes

Yes

PSUS

No³

Yes

Yes

No⁴

Yes

Yes

Yes

Yes

CPRS

No³

Yes

Yes

No⁴

Yes

Yes

Yes

Yes

RCPY

No^{3, 5}

No

No

No⁴

Yes

Yes

No^{5, 6}

No⁶

SMPP

No³

Yes

Yes

No⁴

Yes

Yes

Yes

Yes

PSUE

No³

Yes

Yes

No⁴

Yes

Yes

Yes

Yes

Notes:

1. You can delete a GAD pair by specifying the primary volume, only when the I/O mode is Local and the GAD pair status of the primary volume is PSUS or PSUE.
2. You can delete a GAD pair by specifying the secondary volume, only when the I/O mode is Local and the GAD pair status of the secondary volume is SSWS.
3. To create a GAD pair, you must assign the GAD reserve attribute to the volume used as an S-VOL. Because the virtual LDEV ID of the volume to which the GAD reserve attribute is assigned is deleted, you cannot create a GAD pair by specifying the volume shared with TIA as the S-VOL of the pair.
4. Cannot be used because, when you delete a GAD PAIR specifying the P-VOL, the S-VOL's virtual LDEV ID is also deleted, which makes it unusable as a TIA P-VOL.
5. Cannot be used because the GAD pair's target volume is the same as the TIA pair's target volume.
6. To continue resynchronizing the TIA pair, you must split the GAD pair.