HP UX Encrypted Volume and Filesystem (EVFS) manual Displaying Evfs Volume Information

Displaying EVFS Volume Information

You can display the following information about EVFS volumes:

•I/O and encryption statistics, using the evfsadm stat command.

•Keys configured for an EVFS volume, using the evfsvol display command. This command also displays operating parameters for the EVFS volume, including the underlying LVM, VxVM, or physical volume device file name and the volume encryption algorithm.

Displaying I/O and Encryption Statistics (evfsadm stat)

The evfsadm stat command queries the EVFS kernel modules and displays I/O and encryption statistics. This command is similar to the iostat command.

Syntax

evfsadm stat [-a-s-z]

where:

-aDisplays all available information about EVFS. Displays the number of EVFS volumes, the EVFS subsystem status (up or down), and the number of kernel encryption threads. For each EVFS volume, displays the state, as maintained by the EVFS kernel driver (enabled, disabled, or raw) and I/O and cryptography statistics.

-sDisplays EVFS encryption and decryption statistics. The evfsadm utility displays the total number of decrypted blocks and the total number of encrypted blocks for the EVFS subsystem.

-zResets all statistic values to zero.

Examples

The following listing shows output from the evfsadm stat -acommand:

# evfadm stat -a
----- EVFS statistics -----
Total EVFS Volumes:	1
EVFS Subsystem Status:	up
Active Encryption Threads:	2
---- EVFS Volume Name ----	--- State ---	----------------	Queues	-------------
		orr	owr	odr	oer
/dev/evfs/vg01/lvol5	enabled	0	0	0	0

----EVFS Volume Name ------- State ----------------- Counters -------------

bpr bpw bpd bpe

/dev/evfs/vg01/lvol5 enabled 2074 52441 362 52345

----EVFS Volume Name ------- State ------------------- Rates --------------

kbpsr kbpsw dkbps ekbps

/dev/evfs/vg01/lvol5 enabled 25 3 362 34

The meaning of each field is as follows:

Total EVFS Volumes	Number of EVFS volumes in the kernel registry.
EVFS Subsystem Status	Status of the EVFS kernel components (up or down).
Active Encryption Threads	Number of EVFS kernel threads for cryptography processing.
EVFS Volume Name	Name of the EVFS volume.
State	State of the EVFS volume (enabled or disabled).
orr	Number of queued (outstanding) read requests.
owr	Number of outstanding write requests.
odr	Number of outstanding decryption requests.
oer	Number of outstanding encryption requests.

130 Troubleshooting EVFS