01-10-2009
firstly check all your mount points with df -k and try accessing them. Check format output and iostat -En and see if there are any hard errors on the disk. "Device is gone" not necessarily be an internal disk.We need more outputs to verify.
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LEARN ABOUT OPENSOLARIS
dca
dca(7D) Devices dca(7D)
NAME
dca - Crypto Accelerator device driver
SYNOPSIS
pci108e,5454@pci-slot
pci108e,5455@pci-slot
pci108e,5456@pci-slot
pci14e4,5820@pci-slot
pci14e4,5821@pci-slot
pci14e4,5822@pci-slot
DESCRIPTION
The dca device driver is a multi-threaded, loadable hardware driver supporting Sun PCI-based (pci108e,5454) cryptographic accelerators,
such as the Sun Crypto Accelerator 1000.
The dca driver requires the presence of Solaris Cryptographic Framework for applications and kernel clients to access the provided ser-
vices.
EXTENDED DESCRIPTION
The dca driver maintains the following statistics:
3desjobs Total number of jobs submitted to the device for 3DES encryption.
3desbytes Total number of bytes submitted to the device for 3DES encryption.
rsapublic Total number of jobs submitted to the device for RSA public key operations.
rsaprivate Total number of jobs submitted to the device for RSA private key operations.
dsasign Total number of jobs submitted to the device for DSA signing.
dsaverify Total number of jobs submitted to the device for DSA verification.
rngjobs Total number of jobs submitted for pure entropy generation.
rngbytes Total number of bytes of pure entropy requested from the device.
rngsha1jobs Total number of jobs submitted for entropy generation, with SHA-1 post-processing.
rngsha1bytes Total number of bytes of entropy requested from the device, with SHA-1 post-processing.
Additional statistics may be supplied for Sun support personnel, but are not useful to end users and are not documented here.
The dca driver can be configured by defining properties in /kernel/drv/dca.conf which override the default settings. The following proper-
ties are supported:
nostats Disables the generation of statistics. This property may be used to help prevent traffic analysis, but this may inhibit sup-
port personnel.
rngdirect Disables the SHA-1 post-processing of generated entropy. This may give "truer" random numbers, but it may also introduce the
risk of external biases influencing the distribution of generated random numbers.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Architecture |SPARC |
+-----------------------------+-----------------------------+
|Availability |SUNWdcar |
+-----------------------------+-----------------------------+
|Interface Stability |Unstable |
+-----------------------------+-----------------------------+
FILES
/kernel/drv/dca.conf dca configuration file
/kernel/drv/sparcv9/dca 64-bit ELF kernel driver (SPARC)
/kernel/drv/dca 32-bit ELF kernel driver (x86)
/kernel/drv/amd64/dca 64-bit ELF kernel driver (AMD64)
SEE ALSO
cryptoadm(1M), kstat(1M), prtconf(1M), driver.conf(4), attributes(5)
Solaris Cryptographic Framework.
SunOS 5.11 14 Aug 2005 dca(7D)