Removing a failed drive from a parity set without replacement

Subject pretty much describes the issue.  Here are the details:

Power 9 9009-41A with 1.7 TB of storage that is 20% used

It has 7 IBM 5B41 ESNJ 283GB 2.5-inch SFF-3 15k RPM SAS drives (I think)

Disk hardware shows this:

 Type. . . . . . . . . . . . : 5B41
 Model . . . . . . . . . . . : 099
 Level . . . . . . . . . . . : 4
 Serial Number . . . . . . . : Y210WAE15BLD
 Resource Name . . . . . . . : DMP009

In any case, the drive is in a failed state and so parity protection is unprotected.  To wit:

                       Display Device Parity Status

Parity                      Resource                      Hot Spare
  Set  ASP Unit  Type Model Name       Status Protection
    1            57D8  001  DC01       RAID 5                  N
         1    1  5B41  099  DMP001     Unprotected
         1    4  5B41  099  DMP003     Unprotected
         1    3  5B41  099  DMP007     Unprotected
         1    5  5B41  099  DMP009     Failed
         1    2  5B41  099  DMP005     Unprotected
         1    7  5B41  099  DMP011     Unprotected
         1    6  5B41  099  DMP013     Unprotected

This box is remote (1200 miles away) and although I plan to replace the drive, it may be a while before that happens.  So, I'd like to figure out how to get parity protection back in place before another drive fails.  A bit of reading says I can remove the drive by using SST to exclude the drive from the parity set and then restart parity protection.  Is that all there is to it or is there something else that needs to be done?