Hello [NAME], What interface are you currently using? And what about the host? What card do you have on the host? SAS cabled devices do not support Daisy Chaining. You can check the Dell PowerVault TL2000 Tape Library and TL4000 TapeLibrary User's Guide here: [URL] Regards.
Please forgive these basic questions. I did search the online documentation and these forums but did not find the answers. I have a PowerVault TL4000 with two SAS LTO6 drives installed. I have only ever used 1 drive connected to one host but would like to change this to use both drives, still connected only to one host. I'm seeking guidance/clarification on the proper cabling to accomplish this. Do I use two separate cables from two separate channels from the host, or can I use one host cable connection to one drive daisy-chained to the other drive? Alternatively, I have seen Y-cables for some SAS bus cards that would seem to offer one host port connection to both drives. I cannot seem to find a Mini-SAS HD (SFF-8644) Y cable however, which is the connector the new host came with.  Also, please help me verify that my expectation is correct that having the two drives connected will allow the device to write data to two tapes simultaneously? Is the failover upgrade key required for this? If I do not have this key will it work and/or is there any benefit? Thanks in advance.   ~ Tony
Multiple SAS Tape Drives Connected to One Host