ESX: Restoring S/W iscsi volumes
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ESX: Restoring S/W iscsi volumes
by rehmann
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Dear Colleagues
I am experiencing a strange phenomenon on my ESX 3.5 Update 2 (and before on 3.02, 3.5, ...) platform. I have a single iSCSI target attached to my ESX platform (single ESX host) which I use to store ISOs on and as backup target for VCB consolidated backup. The LUN is initialized with VMFS3 file system and works as expected. The problem I am facing is when the ESX system starts up. Everything is fine until the system comes to the point where it says: *Restoring S/W iscsi volumes* The system is sitting there for around 5-7 minutes before prints the *iscsi negotiation data* received from IETD to the console on moves on in the startup process. As I said; when up and running everything is fine. But everytime I reboot the system (which happens from time to time) it takes ages to "Restore the iscsi volumes" Any idea why this is the case ? Here is my Target/Lun definition: Target iqn.2007-09.com.company:ESX.Volume01 IncomingUser iSCSI <secret> Lun 0 Path=/dev/VGStorage00/LViscsi01,Type=fileio,ScsiSN=VMWARE-0001 Alias ESX-Volume01 I tried the same thing with a test system running ESXi 3.5 Update 2 (The new FREE Hypervisor of VMWare) and I am experiencing the same problem. Is my *ietd.conf* definition wrong ? The LAN is Gigabit and the IET host is a Fedora Core 8 box. I have no problems with Windows iSCSI initiators connecting to the same system. Fast and reliable. Regards, Oliver ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Iscsitarget-devel mailing list Iscsitarget-devel@... https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel |
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Re: ESX: Restoring S/W iscsi volumes
by Joseph L. Casale
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>The problem I am facing is when the ESX system starts up. Everything is
>fine until the system comes to the point where it says: > >*Restoring S/W iscsi volumes* I always saw this behavior, and if I ssh'ed in and rebooted it, it would pass this stage immediately... Never knew why. jlc ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Iscsitarget-devel mailing list Iscsitarget-devel@... https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel |
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Re: ESX: Restoring S/W iscsi volumes
by rswwalker
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Joseph L. Casale wrote:
> > >The problem I am facing is when the ESX system starts up. Everything is > >fine until the system comes to the point where it says: > > > >*Restoring S/W iscsi volumes* > > I always saw this behavior, and if I ssh'ed in and rebooted it, it would > pass this stage immediately... > > Never knew why. It sounds like DNS, if it's routinely 5 minutes then it is some timeout, ipv6 maybe? Try making sure all iSCSI IPs are in the local hosts file, and if you aren't using IPv6 disable it. -Ross ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Iscsitarget-devel mailing list Iscsitarget-devel@... https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel |
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Re: ESX: Restoring S/W iscsi volumes
by rehmann
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Ross S. W. Walker wrote:
> Joseph L. Casale wrote: > >>> The problem I am facing is when the ESX system starts up. Everything is >>> fine until the system comes to the point where it says: >>> >>> *Restoring S/W iscsi volumes* >>> >> I always saw this behavior, and if I ssh'ed in and rebooted it, it would >> pass this stage immediately... >> >> Never knew why. >> > > It sounds like DNS, if it's routinely 5 minutes then it is some timeout, > ipv6 maybe? > > Try making sure all iSCSI IPs are in the local hosts file, and if you > aren't using IPv6 disable it. > > -Ross > > ______________________________________________________________________ > This e-mail, and any attachments thereto, is intended only for use by > the addressee(s) named herein and may contain legally privileged > and/or confidential information. If you are not the intended recipient > of this e-mail, you are hereby notified that any dissemination, > distribution or copying of this e-mail, and any attachments thereto, > is strictly prohibited. If you have received this e-mail in error, > please immediately notify the sender and permanently delete the > original and any copy or printout thereof. > > Sorry... Forgot to post to the list... ======================== Ross Do you mean that I should enter the IP Addresses of my iSCSI target (Fedora 8 Box) in the ESXs host file ? As far as I can remember I used IP addresses directly to connect to the target/portal. So Name Resolution shouldn't be an issue. But I will double check. IPv6: Tell me if I am wrong; but I can't find any IPv6 configuration on ESX/ESXi management LANs (through VI client). Issuing *esxcfg-vmknic -l* on the ESX service console or on the ESXi SSH console shows me only IPv4 configuration. My Fedora Box indeed has IPv6 enabled but this shouldn't be an issue as ESX/ESXi would only communicate with IPv4. Wrong ? Does IETD listen on IPv6 and if so can I disable this ? Regards, Oliver ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Iscsitarget-devel mailing list Iscsitarget-devel@... https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel |
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Re: ESX: Restoring S/W iscsi volumes
by rehmann
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Joseph L. Casale wrote:
>> The problem I am facing is when the ESX system starts up. Everything is >> fine until the system comes to the point where it says: >> >> *Restoring S/W iscsi volumes* >> > > I always saw this behavior, and if I ssh'ed in and rebooted it, it would > pass this stage immediately... > > Never knew why. > > jlc > ========================= Jospeh What do you mean ? You are rebooting your ESX host during iSCSI volume restoration !?!? Is this a good idea ? And doesn't this take more time as waiting until the process goes on anyway ? I mean some servers take quite long to process BIOS/RAID Firmwares, etc... Regards, Oliver ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Iscsitarget-devel mailing list Iscsitarget-devel@... https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel |
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Re: ESX: Restoring S/W iscsi volumes
by Joseph L. Casale
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>You are rebooting your ESX host during iSCSI volume restoration !?!? Is
>this a good idea ? And doesn't this >take more time as waiting until the process goes on anyway ? I mean some >servers take quite long to process >BIOS/RAID Firmwares, etc... What I mean is the first time I saw this, I thought it was hung. I ssh'ed in and rebooted it then it started immediately. After this, I was able to reproduce this. So no, it was faster to start it, then reboot it. At this point the server is obviously way past initializing any hardware as we no longer in the POST. I no longer have any esx servers using iscsi but when I do I will verify the dns reco Ross made. jlc ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Iscsitarget-devel mailing list Iscsitarget-devel@... https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel |
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