SSO drive status in PEND-TLD

I have four lto4 drives SSO with 4 enterprise media servers .

But Drive 0 keep having PEND-TLD state ever i have reboot server and rerun the device coniguration wizard.

Please advise.

 

HP.ULTRIUM4-SCSI.000     No      No                     No        hcart

    media01            {4,0,0,0}                            PEND-TLD

    media02            {3,0,0,0}                            PEND-TLD

    media03            {2,0,0,0}                            PEND-TLD

    media04            {4,0,0,0}                            PEND-TLD