HP StoreEver MSL3040 User's And Service Manual page 74

TIP: This option is only selectable when the following requirements are met:
The partition contains at least two LTO-6 FC tape drives. SAS and other FC tape drives can
be in the same partition, but cannot be configured for ACPF.
NOTE:
LTO-6 High Availability Path Failover requires a driver to be installed on all backup application
servers that will access the partition. For information about High Availability Path Failover,
including installing and using operating system drivers, see the LTO-5 and LTO-6 failover user
guide.
• Enable-LTO7+ Control Path Failover (LTO7+ CPF) —When selected, the failover driver on the
backup host operating system and library work together to handle error recovery and path failover
for the partition at a level below the backup application. LTO-7+ control path failover includes both
port-to-port failover on a single control path drive and drive-to-drive failover of the library LUN.
TIP: This option is only selectable when the following requirements are met:
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NOTE:
LTO-7+ Path Failover requires a driver to be installed on all backup application servers that will
access the partition. For information about LTO-7+ Path Failover, including installing and using
failover software, see the LTO-7 and later generation failover user guide.
13. In the Select Control Path Settings screen, select the Active Control Path Drive. If CPF or ACPF
is enabled, also select the Passive Control Path Drive . Click Next.
14. In the Select Data Path Failover Settings screen, select the Data Path Failover settings for each
tape drive.
• None —When selected, the drive will not attempt to transfer the data path to the other port if it
detects a failure on the primary port.
• LTO6 Adv. DPF—The Advanced Data Path Failover features of LTO-6 drives are enabled. With
ADPF, the failover driver on the backup host operating system and library work together to detect
a failed drive port and transfer the data path to the other drive port as quickly as possible,
resulting in most recoveries completing before the standard command timeout.
74 Operating the library
The partition contains at least two LTO-7 or later generation FC tape drives. For
example, an LTO-7 FC drive can fail over to an LTO-8 FC drive.
SAS and LTO-6 and earlier generation FC tape drives can be in the same partition, but
cannot be configured for LTO-7+ failover.
The HPE MSL3040 LTO-7+ Path Failover License has been added to the library.