EMC DMX-4 Storage Reclamation using CLI

STORAGE RECLAMATION – Summary

• Unmasking
• Write Disable
• Un-mapping
• Dissolve meta
• Deleting hypers

STORAGE RECLAMATION - Detailed Steps

 

1). Unmasking

Unmasking devices from the host

symmaskdb –sid 1234 –www 10000000c93f62cf –dir 7d –p 0 remove devs 26ca

Refresh the Symmetrix Array

symmask –sid 1234 –refresh

2). Write Disable

Write Disable the devices before unmapping from the Director and from port

symdev -sid 1234 write_disable 26ca -sa 7d -p 0 -noprompt

3). Un-mapping

Create a cmd/txt file with the following line

unmap dev 26ca from dir all:all;

Perform preview operation using symconfigure command

symconfigure –sid 1234 –f unmap.txt –v –nop preview

Perform prepare operation using symconfigure command

symconfigure –sid 1234 –f unmap.txt –v –nop prepare

Perform Commit operation using symconfigure command

symconfigure –sid 1234 –f unmap.txt –v –nop commit

Verify that the device has been unmapped

symdev –sid 1234 list -noport

4). Dissolve meta

To Dissolve meta create a cmd/txt file with the following line

dissolve meta dev 26ca;

Perform preview operation using symconfigure command

symconfigure –sid 1234 –f dissolve.txt –v –nop preview

Perform prepare operation using symconfigure command

symconfigure –sid 1234 –f dissolve.txt –v –nop prepare

Perform Commit operation using symconfigure command

symconfigure –sid 1234 –f dissolve.txt –v –nop commit

Verify that the meta has been Dissoved

symdev –sid 1234 list –noport

5). Deleting Hypers

To delete the hypers create a cmd/txt file with the following line

delete dev 26ca:26d1;

Perform preview operation using symconfigure command

symconfigure –sid 1234 –f dissolve.txt –v –nop preview

Perform prepare operation using symconfigure command

symconfigure –sid 1234 –f dissolve.txt –v –nop prepare

Perform Commit operation using symconfigure command

symconfigure –sid 1234 –f dissolve.txt –v –nop commit

Verify that Hypers have been deleted

symdev –sid 1234 list -noport