06-21-2012
Linux os clustering
Hi,
I have done the OS clustering in linux redhat 5.6, my one node is down and when i am trying to reboot the other node it is not coming up. any pointer to this would be helpful.
the SAN storage luns are not coming as mounted
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Dear All Experts,
Would like to know the maturity/ stability of Redhat Linux AS 3.0 and Solaris.
My organization need to setup cluster solution. We are well-versed with Veritas Cluster on Solaris.
We are thinking of waiting for certification support of the various ISV like Oracle, Veritas... (3 Replies)
Discussion started by: izy100
3 Replies
2. UNIX for Dummies Questions & Answers
I woulld like to use the JDE newest version, but I am considering whether using 2 X Wintel server with clustering or 1 Unix server without clustering. Is Unix stable enough to except the clustering? (0 Replies)
Discussion started by: superlouis
0 Replies
3. UNIX for Advanced & Expert Users
Can anybody help me how to mirror the solaris 10 step-by-step with veritas. Have two disks. Then how can I cluster with veritas (1 Reply)
Discussion started by: karole
1 Replies
4. Red Hat
Hello Professionals,
We have high-end HP rack servers. We need to provide application fail-over for business continuity.
We have done benchmarking of the application on RHEL 5.2 on HP servers to estimate the hardware requirement so as to meet next 3-5 years business growth.
Presently we... (1 Reply)
Discussion started by: kgayyar
1 Replies
5. HP-UX
hi,
do u know any link that will get back to me up to speed on hp serviceguard on clustering?
thanks and much appreciated,
itik (2 Replies)
Discussion started by: itik
2 Replies
6. Solaris
SunOS 5.10 Generic_142900-15 sun4u sparc SUNW,SPARC-Enterprise
How can I tell if "clustering" is being used in my shop?
I have to file systems that are identical. These filesystems are nfs mounted. But how can I tell if they are being kept in sync as a result of clustering or some other... (2 Replies)
Discussion started by: Harleyrci
2 Replies
7. UNIX for Dummies Questions & Answers
hi guys
Some time ago I used Linux HA(Heartbeat) to setup like 3 cluster.
Now I have to install another 2 cluster and was checking more info to be sure HA was still used but I found some other stuff like OpenAIS - Corosync - Pacemaker to tell you the truth I am kinda confused here
I get... (0 Replies)
Discussion started by: karlochacon
0 Replies
8. Ubuntu
Dear,
Please help me to configure application clustering in linux ubuntu. Application is running apache server.
Please help
Jewel
---------- Post updated at 01:07 PM ---------- Previous update was at 12:48 PM ----------
linuxvirtualserver dot org
in this link i go there's three... (2 Replies)
Discussion started by: Jewel100
2 Replies
9. HP-UX
Hello guys,
I would like to ask for your assistance, since i am new to HP-UX.
Please give me some documentation about clustering in HP-UX. More precisely design,architecture, configuring etc. I am working on my master thesis right now and would like to include some guidance about that.... (1 Reply)
Discussion started by: bazillion
1 Replies
10. Ubuntu
Hi All,
I am new user here and a new one to try clustering with Ubuntu nodes, and need help. If I should be in another place please mention.
I have a two nodes with Ubuntu 14.04 installed on them. I need to make a cluster consisting of these two nodes with purpose of experimentation with... (3 Replies)
Discussion started by: IncognitoExpert
3 Replies
LEARN ABOUT HPUX
ifc_disable_mgmt_lun
ifc_disable_mgmt_lun(5) File Formats Manual ifc_disable_mgmt_lun(5)
NAME
ifc_disable_mgmt_lun - select whether or not management luns are discovered in the legacy representation of mass storage devices
VALUES
Failsafe
Default
Allowed values
Enable discovery of management luns for array devices.
Disable discovery of management luns for array devices.
Recommended values
DESCRIPTION
Management luns provide the means to access the control ports of Fibre Channel disk arrays. They are represented in both the legacy and
the agile view of storage devices. The legacy representation of a management lun is typically created under a separate virtual extension
bus node. The entry for a legacy management lun looks like this:
On a system with a large number of storage devices connected, creation of management luns can result in an insufficient number of virtual
extension buses for the legacy representation of data luns. Since the number of extension buses on a system is limited to 256, luns
requiring virtual extension buses above 256 will be unusable through legacy device special files. Disabling the discovery and creation of
management luns will free up virtual extension buses for use by data luns.
Who Is Expected to Change This Tunable?
System administrators who expect to use a large number of storage devices requiring more than 256 extension buses through legacy device
special files.
Restrictions on Changing
Changes to this tunable take effect immediately. However, existing management luns will not be removed.
When Should the Tunable Be Turned On?
This tunable should be turned on when the system runs out of extension buses for configuring the legacy representation of data luns.
What Are the Side Effects of Turning the Tunable Off?
None.
When Should the Tunable Be Turned Off?
When the functionality provided by the management luns is desired.
What Are the Side Effects of Turning the Tunable On?
Existing management luns in the legacy representation will show up in the state.
What Other Tunables Should Be Changed at the Same Time?
None.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by HP.
SEE ALSO
ioinit(1M), ioscan(1M), kctune(1M).
Tunable Kernel Parameters ifc_disable_mgmt_lun(5)