10 More Discussions You Might Find Interesting
1. Red Hat
I need to add a VMware virtual disk to the 99-oracle-asmdevices.rules file but the OS is not assigning a WWID to the disk. It has been fdisk'd and a single partition created.
What TAG inside the file needs to be added? the Program scsi-id does not work for some reason. latest patches... (0 Replies)
Discussion started by: mrmurdock
0 Replies
2. Red Hat
Hi,
I am trying to setup multipathing (using DM multipath) for a redhat cluster setup ...all setup is done but issue is :
node 1 shows the shared iscsi lun as sdc
node 2 shows the same as sdg (changes on reboots)
Due to this (i guess) i get i/o error & i can not read files created by... (0 Replies)
Discussion started by: heman96
0 Replies
3. AIX
is there any way to create shared virtual disk between two LPARs like how you can do it using Storage through Fiber on two servers ?
Trying to stimulate HACMP between two LPARs (1 Reply)
Discussion started by: filosophizer
1 Replies
4. HP-UX
Hello people.
I need to shared a disk between two virtuals hosts in the same Guest, and I don't see any help about this.
I'm working on HP-UX 11.31
Thanks to all.:b: (2 Replies)
Discussion started by: cegamboav
2 Replies
5. Solaris
Hi,
I have a very frustrating issue! I hope you guys can assist
When a disk is presented out the iSCSI target display a lower disk capacity
SOLARIS VERSION is SOLARIS 10 05/09 Kernel Patch 139555-31
ISCSI Patch 119090-31, 141878-11
Unix Commands To discover Target
bash-3.00# i... (0 Replies)
Discussion started by: capitalexall
0 Replies
6. UNIX for Dummies Questions & Answers
how to change ethernet cable of iscsi initiator (iscsi client) (0 Replies)
Discussion started by: pankajd
0 Replies
7. AIX
Hi All,
Recently I'm taking my first steps in AIX, initially with no real issues. Until now, off course...
I hooked up a couple of iSCSI disks to the system, with a RHEL5 machine running tgt on the other side. When running cfgmgr after initial configuration, I got an error:
# cfgmgr -l... (4 Replies)
Discussion started by: mr.aart
4 Replies
8. Solaris
These are findings by me with my little experience with Solaris 10. Please correct me if wrong..
In x86 systems with ide hard disk:
c= controller
d=disk
s=slice
1.Here controller c0 means the primary ide controller ide0.
controller c1 means the secondary ide controller ide1.
... (5 Replies)
Discussion started by: saagar
5 Replies
9. UNIX for Advanced & Expert Users
Hello,
I'm wondering what is the naming conventions for *.so shared libraries in linux. For example, a library in /lib, say libcrypt-2.7.so has a symbolic link called libcrypt.so.1 pointing to it, yet libncursesw.so.5.6 has a symbolic link called libncursesw.so.5 pointing to it. What is the... (2 Replies)
Discussion started by: neked
2 Replies
10. AIX
Hello
I am doing a HACMP set-up using AiX e-server p5 series. The very basic requirement for the set-up is Shared disk storage like Fast-T and the related hardware. But because of lack of this hardware I want to use the simulated shared disk environment which is implemented using Network Block... (0 Replies)
Discussion started by: kul_sharvari
0 Replies
did(7) Sun Cluster Device and Network Interfaces did(7)
NAME
did - user configurable disk id driver
DESCRIPTION
Note -
Beginning with the Sun Cluster 3.2 release, Sun Cluster software includes an object-oriented command set. Although Sun Cluster software
still supports the original command set, Sun Cluster procedural documentation uses only the object-oriented command set. For more infor-
mation about the object-oriented command set, see the Intro(1CL) man page.
Disk ID (DID) is a user configurable pseudo device driver that provides access to underlying disk, tape, and CDROM devices. When the
device supports unique device ids, multiple paths to a device are determined according to the device id of the device. Even if multiple
paths are available with the same device id, only one DID name is given to the actual device.
In a clustered environment, a particular physical device will have the same DID name regardless of its connectivity to more than one host
or controller. This, however, is only true of devices that support a global unique device identifier such as physical disks.
DID maintains parallel directories for each type of device that it manages under /dev/did. The devices in these directories behave the same
as their non-DID counterparts. This includes maintaining slices for disk and CDROM devices as well as names for different tape device
behaviors. Both raw and block device access is also supported for disks by means of /dev/did/rdsk and /dev/did/rdsk.
At any point in time, I/O is only supported down one path to the device. No multipathing support is currently available through DID.
Before a DID device can be used, it must first be initialized by means of the scdidadm(1M) command.
IOCTLS
The DID driver maintains an admin node as well as nodes for each DID device minor.
No user ioctls are supported by the admin node.
The DKIOCINFO ioctl is supported when called against the DID device nodes such as /dev/did/rdsk/d0s2.
All other ioctls are passed directly to the driver below.
FILES
/dev/did/dsk/dnsm block disk or CDROM device, where n is the device number and m is the slice number
/dev/did/rdsk/dnsm raw disk or CDROM device, where n is the device number and m is the slice number
/dev/did/rmt/n tape device , where n is the device number
/dev/did/admin administrative device
/kernel/drv/did driver module
/kernel/drv/did.conf driver configuration file
/etc/did.conf scdidadm configuration file for non-clustered systems
Cluster Configuration Repository (CCscdidadm(1M) maintains configuration in the CCR for clustered systems
SEE ALSO
devfsadm(1M), Intro(1CL), cldevice(1CL), scdidadm(1M)
NOTES
DID creates names for devices in groups, in order to decrease the overhead during device hot-plug. For disks, device names are created in
/dev/did/dsk and /dev/did/rdsk in groups of 100 disks at a time. For tapes, device names are created in /dev/did/rmt in groups of 10
tapes at a time. If more devices are added to the cluster than are handled by the current names, another group will be created.
Sun Cluster 3.2 24 April 2001 did(7)