Linux uses hdparm to set these parameters, my question is: what tool uses BSD systems (FreeBSD/OpenBSD/NetBSD)? There is another thing which FreeBSD implements on their filesystems: softupdates. If I forgot to enable this option when I partitioned the disk, how could I enable it at a later time? (1 Reply)
i've gone through the sun docs as well as a Solaris Network Admin book.
while the book is fair, it lacks detail and i'm sure there are things it's missing on getting a caching only name server working.
as for the sun docs... what it has is really miserable. i can't make anything out of it.
... (4 Replies)
As i understand, Patch is a fix to bug in a product.
What is patch level wrt to solaris OS ? How do i know the patch level of a machine ? I have task to compare patch levels of 2 machines running solaris (3 Replies)
Hi All,
In Solaris 9 and below
I will get the init run-level by checking the /etc/inittab entry
is:3:initdefault:
But in Solaris 10 we are using the smf functionality.
Here how I can get the init default run level.
Please help me in this problem.
Regards,
... (2 Replies)
Hello,
I'm creating a VM Image of Solaris 10 on VM Player. I've completed the installation & I am using the Java Desktop as my default logon. I need to modify the Run Level to Console Mode (permanently). Unlike previous versions or Linux, modifying inittab file is not an option here.
Please... (2 Replies)
I have a solaris 10 system configured using NetApp as its storage, and the file systems are already configured as you can see from the example below:
root@moneta # df -h
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 9.8G 513M 9.3G 6% /
... (0 Replies)
I have a solaris 10 system configured using NetApp as its storage, and the file systems are already configured as you can see from the example below:
root@moneta # df -h
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 9.8G 513M 9.3G 6% /... (4 Replies)
Hello All,
Our servers having emc clarion for the data disks. Is that possible to see those san disks raid level from AIX ?
Am having AIX 6.1 and EMC clarion 5.5.
Regards,
Gowtham.G (3 Replies)
Discussion started by: gowthamakanthan
3 Replies
LEARN ABOUT LINUX
cmdk
cmdk(7D) Devices cmdk(7D)NAME
cmdk - common disk driver
SYNOPSIS
cmdk@target, lun : [ partition | slice ]
DESCRIPTION
The cmdk device driver is a common interface to various disk devices. The driver supports magnetic fixed disks and magnetic removable
disks.
The block-files access the disk using the system's normal buffering mechanism and are read and written without regard to physical disk
records. There is also a "raw" interface that provides for direct transmission between the disk and the user's read or write buffer. A sin-
gle read or write call usually results in one I/O operation; raw I/O is therefore considerably more efficient when many bytes are transmit-
ted. The names of the block files are found in /dev/dsk; the names of the raw files are found in /dev/rdsk.
I/O requests to the magnetic disk must have an offset and transfer length that is a multiple of 512 bytes or the driver returns an EINVAL
error.
Slice 0 is normally used for the root file system on a disk, slice 1 as a paging area (for example, swap), and slice 2 for backing up the
entire fdisk partition for Solaris software. Other slices may be used for usr file systems or system reserved area.
Fdisk partition 0 is to access the entire disk and is generally used by the fdisk(1M) program.
FILES
/dev/dsk/cndn[s|p]n block device (IDE)
/dev/rdsk/cndn[s|p]n raw device (IDE)
where:
cn controller n
dn lun n (0-7)
sn UNIX system slice n (0-15)
pn fdisk partition(0)
/kernel/drv/cmdk 32-bit kernel module.
/kernel/drv/amd64/cmdk 64-bit kernel module.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Architecture |x86 |
+-----------------------------+-----------------------------+
SEE ALSO fdisk(1M), mount(1M), lseek(2), read(2), write(2), readdir(3C), scsi(4), vfstab(4), attributes(5), dkio(7I)SunOS 5.10 9 Oct 2004 cmdk(7D)