Comments for Erik Bussink http://www.bussink.ch Technology & Rants since 1991 Wed, 16 May 2012 09:51:00 +0000 hourly 1 http://wordpress.org/?v=3.3.2 Comment on Upgrading vCloud Director Cell from RHEL 5.6 to RHEL 5.7 by thornbux http://www.bussink.ch/?p=697#comment-169 thornbux Wed, 16 May 2012 09:51:00 +0000 http://www.bussink.ch/?p=697#comment-169 Sorry about typo, i meant vCloud Director, not vSphere Client. Sorry about typo, i meant vCloud Director, not vSphere Client.

]]> Comment on Upgrading vCloud Director Cell from RHEL 5.6 to RHEL 5.7 by thornbux http://www.bussink.ch/?p=697#comment-168 thornbux Wed, 16 May 2012 09:49:00 +0000 http://www.bussink.ch/?p=697#comment-168 This only ensures that the redhat-release RPM is not upgraded. You will still get RHEL5 update 8 packages installed with a yum update operation. You can query if you have RHEL5 update 8 packages by running rpm -qa|grep el5_8 Your post only describes how you fool vSphere Client to believe it is running on a certain RHEL update version. I have not found any way to "lock" your RHEL5 installation to a desired RHEL update version. I have also tried yum versionlock as well without any luck. This only ensures that the redhat-release RPM is not upgraded. You will still get RHEL5 update 8 packages installed with a yum update operation. You can query if you have RHEL5 update 8 packages by running rpm -qa|grep el5_8
Your post only describes how you fool vSphere Client to believe it is running on a certain RHEL update version.
I have not found any way to “lock” your RHEL5 installation to a desired RHEL update version. I have also tried yum versionlock as well without any luck.

]]> Comment on iPad and “Could not activate cellular data network” error message by Rouchdy Zahran http://www.bussink.ch/?p=718#comment-167 Rouchdy Zahran Thu, 10 May 2012 19:34:00 +0000 http://www.bussink.ch/?p=718#comment-167 Well! I had the same problem also as soon as I move my location. I was fixing it as follows: 1-Remove the microsim and insert insert it into a regular USB modem. 2-Instaling the modem on my laptop 3- Hooking onto the net using the USB, browse for a couple of minutes, then logoff 4- Reinsert the microsim into the Ipad and it works! Well! I had the same problem also as soon as I move my location. I was fixing it as follows:
1-Remove the microsim and insert insert it into a regular USB modem.
2-Instaling the modem on my laptop
3- Hooking onto the net using the USB, browse for a couple of minutes, then logoff
4- Reinsert the microsim into the Ipad and it works!

]]> Comment on Nexenta storage for the vLab by Femi Adegoke http://www.bussink.ch/?p=759#comment-166 Femi Adegoke Wed, 02 May 2012 02:59:00 +0000 http://www.bussink.ch/?p=759#comment-166 Thx for this blog post. I'll be reading & digesting this slowly. btw, 10 Gbe for the homelab is a viable possibility. Pls see this podcast & my youtube video http://veeam.podbean.com/2012/04/30/episode-65-10-gig-lab-networking-on-the-cheap/ Thx for this blog post. I’ll be reading & digesting this slowly.

btw, 10 Gbe for the homelab is a viable possibility.

Pls see this podcast & my youtube video

http://veeam.podbean.com/2012/04/30/episode-65-10-gig-lab-networking-on-the-cheap/

]]> Comment on Nexenta storage for the vLab by 77109 http://www.bussink.ch/?p=759#comment-165 77109 Tue, 01 May 2012 21:13:00 +0000 http://www.bussink.ch/?p=759#comment-165 oups sorry i didn't see i was using my school email, it's me anthony xD. For NFS i'm not fan of load balancing teaming, i think use a VDS for the storage part it's just too dangerous. But you can make quite a good "manual" loadbalancing with multiple networks. I just don't remember if you can mount the same share with different IP's or if you are oblige to make a new share for each export (it doesn't matter with zfs because you pick space on the same pool). oups sorry i didn’t see i was using my school email, it’s me anthony xD.

For NFS i’m not fan of load balancing teaming, i think use a VDS for the storage part it’s just too dangerous. But you can make quite a good “manual” loadbalancing with multiple networks.

I just don’t remember if you can mount the same share with different IP’s or if you are oblige to make a new share for each export (it doesn’t matter with zfs because you pick space on the same pool).

]]> Comment on Nexenta storage for the vLab by Nexenta stats running sample VMware Data Recovery backup | Erik Bussink http://www.bussink.ch/?p=759#comment-164 Nexenta stats running sample VMware Data Recovery backup | Erik Bussink Tue, 01 May 2012 19:48:07 +0000 http://www.bussink.ch/?p=759#comment-164 [...] Erik Bussink Hiya 77109, I'm using both NFS and iSCSI on my NexentaStor ... [...] [...] Erik Bussink Hiya 77109, I'm using both NFS and iSCSI on my NexentaStor … [...]

]]> Comment on Nexenta storage for the vLab by Erik Bussink http://www.bussink.ch/?p=759#comment-163 Erik Bussink Tue, 01 May 2012 19:07:00 +0000 http://www.bussink.ch/?p=759#comment-163 Hiya 77109, I'm using both NFS and iSCSI on my NexentaStor server. I use mostly NFS for five other lesser ESXi hosts, running two vCloud Director labs. I definitely use the NFS for my Multi-Cell vCloud Director implementation. For Labs, getting quickly a NFS mount point into an ESXi is great and flexible. I also centralize my .iso files on the NFS share and I use the NFS as the scratch disk and logs. I have not pushed the NFS storage with Load Balancing Teaming and IP Network Multipathing as far as some other people. When facing customers and storage vendors, I often hear people talk about performant NFS with 10GbE. 10 GbE is still expensive for homelabs. Maybe I'll be able to upgrade my lab to 10GbE with a Cisco SG500X-48 Switch, but not before the end of the year. VAAI is limited to the iSCSI protocol for now with Nexenta (rare are the other storage vendor that propose VAAI on NFS). Having the VAAI on the NexentaStor Community Edition is just fantastic. I'm not expecting much use of the L2ARC on my IO Analyzer test patterns, but I do see my L2ARC being used quiet extensively when running my VMware Data Recovery jobs in the evening. So I do see usage of my L2ARC. As for the MRU and MFU for L2ARC topic, that is still something I have not studied, understood and tested. I'm not going to make the claim that I understand everything about ZFS & NexentaStor. I just had to lookup what the MRU and MFU are with google before posting this answer :-) Hiya 77109,

I’m using both NFS and iSCSI on my NexentaStor server.

I use mostly NFS for five other lesser ESXi hosts, running two vCloud Director labs. I definitely use the NFS for my Multi-Cell vCloud Director implementation. For Labs, getting quickly a NFS mount point into an ESXi is great and flexible. I also centralize my .iso files on the NFS share and I use the NFS as the scratch disk and logs.

I have not pushed the NFS storage with Load Balancing Teaming and IP Network Multipathing as far as some other people.

When facing customers and storage vendors, I often hear people talk about performant NFS with 10GbE. 10 GbE is still expensive for homelabs. Maybe I’ll be able to upgrade my lab to 10GbE with a Cisco SG500X-48 Switch, but not before the end of the year.

VAAI is limited to the iSCSI protocol for now with Nexenta (rare are the other storage vendor that propose VAAI on NFS). Having the VAAI on the NexentaStor Community Edition is just fantastic.

I’m not expecting much use of the L2ARC on my IO Analyzer test patterns, but I do see my L2ARC being used quiet extensively when running my VMware Data Recovery jobs in the evening. So I do see usage of my L2ARC.

As for the MRU and MFU for L2ARC topic, that is still something I have not studied, understood and tested. I’m not going to make the claim that I understand everything about ZFS & NexentaStor. I just had to lookup what the MRU and MFU are with google before posting this answer :-)

]]> Comment on Nexenta storage for the vLab by 77109 http://www.bussink.ch/?p=759#comment-162 77109 Tue, 01 May 2012 18:35:00 +0000 http://www.bussink.ch/?p=759#comment-162 Why iscsi and not nfs? And with your test the l2arc is normally not use because l2arc use the mfu and mru algorithm so you need some day maybe a week before the l2arc become useful But it's still a good testing platform P.S have you check your arc utilization? because by default nexenta will only use 40% of your ram for caching data, and you can change this parameter Why iscsi and not nfs?
And with your test the l2arc is normally not use because l2arc use the mfu and mru algorithm so you need some day maybe a week before the l2arc become useful
But it’s still a good testing platform

P.S have you check your arc utilization? because by default nexenta will only use 40% of your ram for caching data, and you can change this parameter

]]> Comment on iPad and “Could not activate cellular data network” error message by Stefanus Wardoyo http://www.bussink.ch/?p=718#comment-161 Stefanus Wardoyo Tue, 01 May 2012 03:33:00 +0000 http://www.bussink.ch/?p=718#comment-161 Guys, I facing the same problem. So this is general bugs found in iOS5.1 ?? Reboot is only temporary solution, but when the iPad not use 3G for long time (for example we are in Wifi spot area), when it turn back to 3G it will raise the same error. Guys, I facing the same problem. So this is general bugs found in iOS5.1 ??
Reboot is only temporary solution, but when the iPad not use 3G for long time (for example we are in Wifi spot area), when it turn back to 3G it will raise the same error.

]]> Comment on vSphere 5.0 on HP ML110 G7 by Trevor Smith http://www.bussink.ch/?p=382#comment-160 Trevor Smith Mon, 30 Apr 2012 18:55:00 +0000 http://www.bussink.ch/?p=382#comment-160 Brilliant! Thanks Brilliant! Thanks

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