Encrypted Volume and File System v1.1 Administrator's Guide

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:
-a
Displays 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.
-s Displays 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.
-z
Resets all statistic values to zero.
Examples
The following listing shows output from the evfsadm stat -a command:
# 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:
Number of EVFS volumes in the kernel registry.
Total EVFS Volumes
Status of the EVFS kernel components (up or down).
EVFS Subsystem Status
Number of EVFS kernel threads for cryptography processing.
Active Encryption Threads
Name of the EVFS volume.
EVFS Volume Name
State of the EVFS volume (enabled or disabled).
State
Number of queued (outstanding) read requests.
orr
Number of outstanding write requests.
owr
Number of outstanding decryption requests.
odr
Number of outstanding encryption requests.
oer
130 Troubleshooting EVFS