Hello, I need to test whether our product will work with GPFS filesystems and I have some questions regarding the setup:
1. Do I need to dedicate an entire hard disk if I want to have GPFS on it? Or can I somehow split a disk into 2 virtual disks, and only use 1 for gpfs?
2. If lspv returns "none" that means the disk is connected but has not been allocated, and thus available for use in GPFS setup?
Example (hdisk3):
3. Do I have to have a second node in order to create a cluster and create a gpfs on that cluster? Or can I start with one node (just to test functionality) and add a second node later? (basically, can I use that one system above with hdisk3 available to test gpfs on its own?)
I have a piece of equipment, a Baytech RPC-3, that I need to communicate with through the com port.
I normally use this equipment at home and am able to connect to it without problems using FC5 and minicom; I brought the equipment into work and cannot get my pc, using Suse 10 and minicom to... (0 Replies)
Hi,
does anyone here happen to know if I could run GLVM or GPFS on Solid State Disks?
I have a high volume / high transaction Sybase HACMP cluster currently setup with SRDF to the DR datacentre. My business now considers to move everything to SSD storage but we still need to get the data to... (0 Replies)
:cool:Hello,
can someone guide me how to create a GPFS filesystem, I've read a couple of redbooks however certain things are still not certain, like if you require to download files or licenses...
any help would be appreciated! (2 Replies)
Hi,
I have a running GPFS cluster. For one every mountpoint that i have created i have one disk assigned to it. That disk is converted to an NSD and is a part of the GPFS Cluster.
Now i have a new disk and there is this requirement to add it to the GPFS cluster, such that this becomes an NSD.... (1 Reply)
Hello I am interested if anybody uses GPFS and is it must to have GPFS in the POWERHA environment?
and can GPFS work as cluster active active or active passive
thanks in advance (0 Replies)
Dear all
for the last few days i was searching in IBM web site for GPFS 3.3 to upgrade my gpfs from 3.2 to 3.3 and i did not find the download link for the GPFS 3.3 in IBM website please can anyone give me the link . (4 Replies)
Hi
We are doing the migration of DMX3 disks to DMX4 disks using migratepv. We are not using GPFS but we have gpfs disks present in the server. Can anyone advise how to get rid of GPFS in both the servers cbspsrdb01 and cbspsrdb02. I will do migratepv for the other disks present in the servers... (2 Replies)
we have implement GPFS 3.5.0.10 with 4 nodes cluster AIX 6.1 TL8 and they VIO clients , after that we noticed a big delay while we execute any command like mmgetstate -a will take about 2.5 minutes . time mmgetstate -a Node number Node name GPFS state ... (3 Replies)
Hello Gurus,
Could you please help me out of the difference between GPFS and NFS.
Thanks-
P (1 Reply)
Discussion started by: pokhraj_d
1 Replies
LEARN ABOUT CENTOS
crm_shadow
PACEMAKER(8) System Administration Utilities PACEMAKER(8)NAME
Pacemaker - Part of the Pacemaker cluster resource manager
SYNOPSIS
crm_shadow (query|command) [modifiers]
DESCRIPTION
crm_shadow - Perform configuration changes in a sandbox before updating the live cluster.
Sets up an environment in which configuration tools (cibadmin, crm_resource, etc) work offline instead of against a live cluster, allowing
changes to be previewed and tested for side-effects.
OPTIONS
-?, --help
This text
-$, --version
Version information
-V, --verbose
Increase debug output
Queries:
-w, --which
Indicate the active shadow copy
-p, --display
Display the contents of the active shadow copy
-E, --edit
Edit the contents of the active shadow copy with your favorite $EDITOR
-d, --diff
Display the changes in the active shadow copy
-F, --file
Display the location of the active shadow copy file
Commands:
-c, --create=value
Create the named shadow copy of the active cluster configuration
-e, --create-empty=value
Create the named shadow copy with an empty cluster configuration
-C, --commit=value
Upload the contents of the named shadow copy to the cluster
-D, --delete=value
Delete the contents of the named shadow copy
-r, --reset=value
Recreate the named shadow copy from the active cluster configuration
-s, --switch=value
(Advanced) Switch to the named shadow copy
Additional Options:
-f, --force
(Advanced) Force the action to be performed
-b, --batch
(Advanced) Don't spawn a new shell
-a, --all
(Advanced) Upload the entire CIB, including status, with --commit
EXAMPLES
Create a blank shadow configuration:
# crm_shadow --create-empty myShadow
Create a shadow configuration from the running cluster:
# crm_shadow --create myShadow
Display the current shadow configuration:
# crm_shadow --display
Discard the current shadow configuration (named myShadow):
# crm_shadow --delete myShadow
Upload the current shadow configuration (named myShadow) to the running cluster:
# crm_shadow --commit myShadow
AUTHOR
Written by Andrew Beekhof
REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org
Pacemaker 1.1.10-29.el7 June 2014 PACEMAKER(8)