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Planning for DR on XenServer
I have several ReadyNas Units - RN 104 and ReadyNas 314 units. I would like to know if I buy a couple backup units just to have in inventory and I have a unit die, can I just move the drives from one unit to another and boot up the new unit or do I need to do something else to restore a unit? I am trying to plan for disaster recovery and would like to know the best way to handle if I have a unit die. Thanks.Massive I/O errors on virtual machine using shared NFS
I'm not sure what information you need but here's what I'm experiencing: Running Cpanel as a virtual machine under XenServer 6.2 and using a ReadyNAS 314 (Raid 10) as shared storage. ReadyNAS running firmware 6.1.8 A few days ago, Cpanel became unaccessible. When checking the console using Xencenter, I saw massive I/O errors. Rebooting the VM took me to maintenance mode (Centos 6.4) where I ran fsck. After fixing numerous errors, I rebooted and everything came back up normal with all mounts as RW. After about 4 or 5 hours, it went down again with I/O errors and fsck did not fix the problems. After rebooting the NAS and running fsck again, I was able to successfully boot the machine with drives in RW mode. This time it ran for about 12 hours before crashing. Long story short, this went on for two days and now fsck is not fixing the problem. In addition, when I mount one of the NAS NFS shares onto another Linux machine, I'm getting a "No space left on device" error when trying to copy between folders even though there is 1.2TB free space on the share. df -h shows: 192.168.50.67:/data/Backup 3.7T 2.5T 1.2T 67% /mnt/Backup For right now, I'm getting all of my files off of the shared NAS and putting them on local storage repositories? Thank you in advance for any suggestions, Dan
Just wondering about working Xenserver/ReadyNAS setups
I have a small, 2 server XenServer 6.1 pool and a ReadyNAS 2100v2 serving as shared storage via iSCSI. The two NAS NICs are teamed with LACP, and the NAS has four 7200 RPM SATA hard drives in XRAID2. Granted, I have fewer than 10 VMs, but it works. I am looking to upgrade pieces of this setup while hoping to keep the NAS. I might upgrade the hard drives to SSDs or Western Digital Velociraptor's, and maybe change the teaming method of the NICs, and maybe switch to NFS shared storage instead of iSCSI, to test if I get more throughput. Anyone else care to post your Xenserver/ReadyNAS setup? I would love to learn how other setups differ from mine and your take on your setup's performance.
Xenserver 6.2 and ReadyNAS 516 NFS
We tried to put a 516 in a Xenserver 5.2 environment today as a NFS store. Xenserver won't connect to it. Old ReadyNAS pro/ultra 6 worked fine. Whats the deal on NFS support for virtualization platforms on the new units? Is that coming or is it somehow broken with BTRFS?2100 and iSCSI for XenServer 6 - can't see LUNs
I have 2 XenServers and one 2100 NAS with iSCSI turned on and CHAP enabled on the LUN. XenCenter cannot see the LUN. I enabled/disabled CHAP, rebooted, toggled the iSCSI service on/off, destroyed and recreated the LUN, all to no avail. I found a couple older forum posts discussing this, and most pointed to an addon that was created specifically for XenServer. That addon is not in the addon list that I could see. Also, those posts were dealing with firmware 4.2.15 or lower. I have XenServer 6.1 and 2100 firmware 4.2.22. Is the addon still the answer, and if so, where is it? Thanks.
Citrix StorageLink with XenServer
Any plans on NETGEAR pursuing this with Citrix? I'm realizing that the more 4200's and hosts that I setup and manage, larger clients want an automated site-recovery implementation. Citrix (and VMware) have great solutions for this... but appears the ReadyNAS products are not among the supported device/controller types. Citrix StorageLink HCL here: http://hcl.xensource.com/SLG-HCLHome.aspxHow to setup Multipathing with XenServer and a readynas?
Hello Guys, I saw that the latest 4.2.15 firmware also support MPIO and MCS. Now I was wondering how can I enable multipathing in my xenservers to my Readynas 3200? Does anybody now the minimal requirements at the xenserver side (nics - setup etc..) and how to set it up at the readynas 3200 side? Please assist.
ReadyNas Pro and Xencloud/Xenserver
So I support my church afterhours and in the process of upgrading hardware/software and planning on going to xenserver/xencloud to handle the the new servers. Planning on going with sbs 2011 and we also have a couple of other servers linux based doing image management, etc. So I have been reading all weekend on NAS hardware and performance, while I realize that performance will not be as good as if the storage was native to the box, I am considering putting all of the Data pools on the nas, they will be connected to the same switch gig speeds and contemplating whether to go iscsi or nfs. Looking at the naspro 4 or maybe the naspro 6 and my preference would be to run in flexraid mode and run raid 10. Actually my preference would be to run Raid 10 + hotspare in the Naspro 6 but I can't see anywhere that this is supported at the moment. We are talking about small number of users 5-10, so I think performance would be acceptable unless someone can tell me otherwise. The other thing that I am trying to figure out is if I put all of my VM's on the NAS, what is the best way to back them up/replicate them to another NAS etc. I can shut the vm's down and perform snapshots, right now we do backups three times a week to a usb hard drive that is rotated offsite. What I am trying to figure out is what is the best way to achieve this, I was thinking of purchasing a readynas pro2 and use the replicate function but its not clear if I could schedule this to replicate only when the vm's are offline. If anyone has any suggestions/thoughts I would greatly appreciate the input, Thanks :)