Questions tagged [gfs]
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How does placing data in various racks help to exploit the fact that intra-rack aggregated bandwidth>=inter-rack bandwidth?
GFS research paper snapshot it says that(my interpretation after reading research paper and its reviews) "inter rack bandwidth is lower than aggregated intra rack bandwidth(not sure what it means ...
Finding the number of blocks given replication goal in Google FIle System?
A cluster contains 1500 machines each having 500GB disk capacity. Calculate approximate number of chunk servers, blocks and total available size if default chunk replica is 3 and 5 respectively? We ...
Bacula - disc backup GFS-scheme "hole"
I have a question about implementing the GFS-scheme with bacula on a harddrive(the deamons already work fine). What I want to accomplish: Every half year i want a full-backup that should be accessable ...
Can I do the GlusterFS setup with a LB or heartbeat service in SLES 12? If yes, How?
I've installed GlusterFS on Suse 12 with 2 VMs & 2 replica. When one server goes down it doesn't failover to the 2nd IP automatically. Can I do the same with a loadbalancer or heartbeat service? ...
Horizontal Scaling Alternatives To GFSv2 (slowness)
I'm having an infrastructure design problem with an application. Right now we access a lot of small files (under 10MB) from a GFSv2 2-node cluster. 90% of file access is "random reads" to this GFSv2 ...
Best method to share ISCSI lun across cluster of app servers
I'm in the process of migrating our cluster to new hardware. We use bare metal servers, no virtualization. Currently, we have around 30 "application" servers. When we make an update, we push the ...
Clarification needed on GFS and shared file system
Need clarification regarding selecting a shared file system for our servers . The shared space is from SAN and the servers will write to the shared file system at the same time. One option for me is ...
I was going through the configuration of DRBD on two nodes. The DRBD has already configured, but I would like to enable the dual primary mode feature. On drbd site I have seen that it requires the ...
ubuntu cluster - so close but so far
Here's the set up: Two Ubuntu 9.10 servers - LAMP environment (not really an option to switch OS) One MD3000i with iscsi connection Here's what I'd like to do: Have both server see the files that ...
How Does The Linux Disk Cache Work With iSCSI and GFS2?
I'm planning to share a GFS2 filesystem via iSCSI to my web servers. Are the files read by my web servers cached locally using the linux disk cache stored in memory or are they only cached on the ...
What is difference between Google fs and Red Hat GFS?
can same tell me what is difference between Google fs and RedHat GFS ? I have google for the same but very little info got. Thanks for all you support!!
NFS or GFS for LVS 10 Server Setup
Currently we have a 10 servers setup as a linux virtual server. We have: 2 Load Balancers (master / slave) 3 Web Servers 2 MySQL Servers (master / slave) 2 Central File Storage Servers (master / ...
Solaris to Linux conversion: Use VxFS or GFS?
We're a Solaris shop looking at RedHat Enterprise Linux and one of the things we're wondering is if we should keep Veritas Volume Manager + FileSystem or go with LVM+ext3 or RedHat's preferred cluster ...
How to mount a drbd/gfs logical volume from Xen VM?
Any hint on how to do this for primary/primary? I have drbd and gfs running ok, I can see the logical volume from the DomU but dont know how to mount it. Should I install gfs on DomU and mount??? ...
One of the nodes of a 4 node cluster is not allowing me to access GFS
[root@host3 ~]# cd /var/opt/new/new1/global -bash: cd: /var/opt/new/new1/global: Input/output error output of the df : /dev/mapper/vgglobal-lvol3 11524928 2560092 8964836 ...
What are the pros and cons of OCFS2 and GFS2 filesystems versus NFS?
We need to set up a SAN accessible from a bunch of computers, both virtualized and real. We have an iSCSI SAN and I need to ponder some of the options. What are the differences between GFS2 and ...
For kvm host images. GFS2 or OCFS2 with drbd8?
I want a shared filesystem on top of drbd8 on two nodes. The servers run ubuntu 9.10. I googled a lot, but couldn't find an clear trend what the web community prefers. It's seems that OCFS2 is ...
Xen cluster + iSCSI - Do I need a clustered filesystem
I am in the process of deploying a two-node CentOS+Xen with iSCSI for live migration. The idea is to create a 600GB iSCSI lun, mount it on one of the servers and partition it with LVM. Each VM will ...
GFS broken down, unable to start lock_gulmd, says state=Expired
Someting has broken and I lost a connection with storage on first server. Second server had access to that FS. I tried to restart GFS by service lock_gulmd, gfs, pool, ccsd stop/start (in various ...
Hardware and topology suggestions for iSCSI + GFS environment
We are currently evaluating hardware and topology solutions for a new environment using GFS+iSCSI and would like some suggestions/tips. We have deployed a similar solution in the past where all hosts ...