Re: [zones-discuss] Questions regarding Solaris containers
Challa, Narsimha Reddy (STSD-HYD) writes: 1. What are the supported versions of Solaris that support Containers concept? As per my search on this from Solaris 10 Update 4 or Update 5 onwards containers are supported. Am I right? I'm not quite sure what you mean by Containers; can you clarify? The Solaris Zones feature has been a part of Solaris 10 since the very first release, but we've added capabilities to it in several of the updates since then. 2. Can raw disks be exported to Solaris containers from global zone? Using zonecfg command we tried exporting devices (disk partitions/SVM volumes) to containers. Once they have been exported we are unable to see those in the /dev/dsk directory of the non global zone. Did you reboot the zone after setting up the export? Are there any log messages? What was the exact configuration used? (And have you contacted Sun's support group?) There are some known problems, such as CR 6632938, which makes a pattern like /dev/dsk/c2t1d0s* not work, but getting to the root of the problem will require details. -- James Carlson, Solaris Networking [EMAIL PROTECTED] Sun Microsystems / 35 Network Drive71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Questions regarding Solaris containers
I'm not quite sure what you mean by Containers; can you clarify? This is Sun marketing droid newspeak: Containers = Zones + Resource Manager See, I paid attention. May I have my cookie now please? :-) Regards -- Volker -- Volker A. Brandt Consulting and Support for Sun Solaris Brandt Brandt Computer GmbH WWW: http://www.bb-c.de/ Am Wiesenpfad 6, 53340 Meckenheim Email: [EMAIL PROTECTED] Handelsregister: Amtsgericht Bonn, HRB 10513 Schuhgröße: 45 Geschäftsführer: Rainer J. H. Brandt und Volker A. Brandt ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Questions regarding Solaris containers
On 10/20/08 21:29, Challa, Narsimha Reddy (STSD-HYD) wrote: Hi, I am new to Solaris containers. Can somebody please clarify the below questions: 1. What are the supported versions of Solaris that support Containers concept? As per my search on this from “Solaris 10 Update 4 or Update 5” onwards containers are supported. Am I right? Solaris Containers were delivered in the original 3/05 release of Solaris 10. Technically, Solaris Zone were delivered then, unless you count the Solaris Express previews of S10 before that. And since Containers is a marketing term to combine zones and resource management, the later updates of Solaris 9 had RM Containers. And RM goes back to at least 2.4 with processor sets (pset), 2.6 with the fair share scheduler (FSS or Solaris Resource Manager (SRM)), Solaris 9 with resource pools (an abstraction of pset), and then S10 with dynamic resource pools. 2. Can raw disks be exported to Solaris containers from global zone? Using “zonecfg” command we tried exporting devices (disk partitions/SVM volumes) to containers. Once they have been exported we are unable to see those in the “/dev/dsk” directory of the non global zone. The zones FAQ at http://opensolaris.org/os/community/zones/faq/ discusses this. Did you reboot the zone? The question I would ask is 'why do you nned to do this?' Zones is a security perimeter around a set of processes and additional services to make it look like its own system, without all the other stuff to make it a 'complete' system (those things are kept to the kernel and global zone. One of the benefits is needing to manage devices only in the global zone. So when you have ten zones running, there is one device administration point, instead of eleven. Is there a known issue regarding this? 3. Is there any concept of virtual HBA in Solaris Containers? Are external disks from the storage arrays presented directly to the Solaris container? Can multipathing software be configured on the Solaris container? No. Per above you can extend LUNs. Multipathing is a kernel/driver function for disk. IPMP (multipathing for IP) can be done in zone if it is of ip-type=exclusive, which is not the default. This puts more admin1stration into the non-global zone. 4. Is Volume management (SVM and VxVM) supported inside Solaris containers today? Some of the old documents show that the volume management commands are accessible but are modified to display the below message. Is this still valid today? SVM is. See the FAQ. You will need to ask Veritas about VxVM. /VxVM command_xxx ERROR msg_id: Please execute this operation in global zone./ 5. Can somebody clarify me whether ZFS is supported for containers? Since ZFS has the concept of creating pool of devices first and on top of that file systems can be created. I would like to know what kind of support is there today for ZFS for Solaris containers? This is evolving. You can delegate a ZFS file system into a zone. With the upcoming S10 10/08, the zone path is fully supported on ZFS. A future is to have a zone clone automatically do a ZFS clone--this is already in Solaris Nevada/SXCE. 6. What cluster softwares (Ex: VCS, Solaris) are supported with Solaris Containers today? Solaris Cluster supports zones. I don't know if RM is managed within the cluster framework, or outside of it. VCS supports zones. 7. Can we get CPU and Memory utilization statistics used by a specific container (either from with in the container or from global zone)? Always from the global zone. What you can get within a non-global zone depends on resource management applied to the zone, especially for CPUs. 8. What databases are supported today for Solaris containers? As per the bigadmin document “db_in_containers”, only non-RAC Oracle is supported by containers. Is this still valid today or is there support provided for Oracle RAC? Oracle is supported. I understand that RAC support may be coming. Is DB2 supported inside containers? I don't know. Steffen Thanks in advance. Regards, -Narsimha ___ zones-discuss mailing list zones-discuss@opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Questions regarding Solaris containers
Steffen Weiberle wrote: On 10/20/08 21:29, Challa, Narsimha Reddy (STSD-HYD) wrote: Hi, I am new to Solaris containers. Can somebody please clarify the below questions: 1. What are the supported versions of Solaris that support Containers concept? As per my search on this from “Solaris 10 Update 4 or Update 5” onwards containers are supported. Am I right? Solaris Containers were delivered in the original 3/05 release of Solaris 10. Technically, Solaris Zone were delivered then, unless you count the Solaris Express previews of S10 before that. And since Containers is a marketing term to combine zones and resource management, the later updates of Solaris 9 had RM Containers. And RM goes back to at least 2.4 with processor sets (pset), 2.6 with the fair share scheduler (FSS or Solaris Resource Manager (SRM)), Solaris 9 with resource pools (an abstraction of pset), and then S10 with dynamic resource pools. 2. Can raw disks be exported to Solaris containers from global zone? Using “zonecfg” command we tried exporting devices (disk partitions/SVM volumes) to containers. Once they have been exported we are unable to see those in the “/dev/dsk” directory of the non global zone. The zones FAQ at http://opensolaris.org/os/community/zones/faq/ discusses this. Did you reboot the zone? The question I would ask is 'why do you nned to do this?' Zones is a security perimeter around a set of processes and additional services to make it look like its own system, without all the other stuff to make it a 'complete' system (those things are kept to the kernel and global zone. One of the benefits is needing to manage devices only in the global zone. So when you have ten zones running, there is one device administration point, instead of eleven. Is there a known issue regarding this? 3. Is there any concept of virtual HBA in Solaris Containers? Are external disks from the storage arrays presented directly to the Solaris container? Can multipathing software be configured on the Solaris container? No. Per above you can extend LUNs. Multipathing is a kernel/driver function for disk. IPMP (multipathing for IP) can be done in zone if it is of ip-type=exclusive, which is not the default. This puts more admin1stration into the non-global zone. 4. Is Volume management (SVM and VxVM) supported inside Solaris containers today? Some of the old documents show that the volume management commands are accessible but are modified to display the below message. Is this still valid today? SVM is. See the FAQ. You will need to ask Veritas about VxVM. /VxVM command_xxx ERROR msg_id: Please execute this operation in global zone./ 5. Can somebody clarify me whether ZFS is supported for containers? Since ZFS has the concept of creating pool of devices first and on top of that file systems can be created. I would like to know what kind of support is there today for ZFS for Solaris containers? This is evolving. You can delegate a ZFS file system into a zone. With the upcoming S10 10/08, the zone path is fully supported on ZFS. A future is to have a zone clone automatically do a ZFS clone--this is already in Solaris Nevada/SXCE. 6. What cluster softwares (Ex: VCS, Solaris) are supported with Solaris Containers today? Solaris Cluster supports zones. I don't know if RM is managed within the cluster framework, or outside of it. VCS supports zones. RM is managed outside Sun Cluster. Zones are supported in two different ways: 1. Switching a zone from one node to another. 2. By having a service zone and switching the application. Cluster commands use the global zone as a proxy. Konstantin 7. Can we get CPU and Memory utilization statistics used by a specific container (either from with in the container or from global zone)? Always from the global zone. What you can get within a non-global zone depends on resource management applied to the zone, especially for CPUs. 8. What databases are supported today for Solaris containers? As per the bigadmin document “db_in_containers”, only non-RAC Oracle is supported by containers. Is this still valid today or is there support provided for Oracle RAC? Oracle is supported. I understand that RAC support may be coming. Is DB2 supported inside containers? I don't know. Steffen Thanks in advance. Regards, -Narsimha ___ zones-discuss mailing list zones-discuss@opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Questions regarding Solaris containers
On Mon, Oct 20, 2008 at 9:29 PM, Challa, Narsimha Reddy (STSD-HYD) [EMAIL PROTECTED] wrote: 7. Can we get CPU and Memory utilization statistics used by a specific container (either from with in the container or from global zone)? prstat -Z may provide the data you want to see. -- --JeffV ___ zones-discuss mailing list zones-discuss@opensolaris.org
[zones-discuss] zoneroot on nfs?
I haven't found any documentation (yet, still looking), that says anything either way, but I'm wondering to facilitate zone migration if you can place a zone root on an NFS filesystem? Obviously would only be mounted on 1 server at any given time, but outside of that, just wondering if it should work, or if I should look at SAN/iscsi luns if I want to be able to move it around. ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Running Oracle Database inside Solaris 8/9 Container Using Sun Cluster
On Mon, Oct 20, 2008 at 1:19 PM, Eric Li [EMAIL PROTECTED] wrote: Dear All, Our customers like to run existing Oracle database inside Solaris 8/9 container using Sun Cluster. Please kindly advise if - Is this configuration certified by Oracle? You should ask Oracle. They will want to know what Oracle software and version you are using. In my experience, the version of Oracle DB running on the S8 system was so old that Oracle didn't support it on any platform. - Will it be supported by Oracle? - Will Sun Cluster support this? (Sun Cluster 3.2 02/08?) Sun Cluster supports S8C's and S9C's. - Any references? Thank you in advance for your help. -- --JeffV ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] zoneroot on nfs?
See Jeff's blog for full details: http://blogs.sun.com/JeffV/entry/zoit_solaris_zones_on_iscsi -- Renaud Jason King wrote: I haven't found any documentation (yet, still looking), that says anything either way, but I'm wondering to facilitate zone migration if you can place a zone root on an NFS filesystem? Obviously would only be mounted on 1 server at any given time, but outside of that, just wondering if it should work, or if I should look at SAN/iscsi luns if I want to be able to move it around. ___ zones-discuss mailing list zones-discuss@opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Somewhat unusual exclusive-IP type configuration needed
On 10/20/08 10:58, Joe Barbey wrote: Hi all, I've got a situation that doesn't seem to be really covered in the various docs I've read up to now. I have a number of servers where I want to do something like the following, if possible. Any help would be greatly appreciated. I would like to host a number of zones on a server, let's say an m4000, but I want those zones to be on a different subnet than the global. So far, no problem: use exclusive-IP. However, currently I don't have enough NICs to give one each to all zones. One thought I had was a sort of mix of shared-IP and exclusive-IP. Give a couple of different zones the same NIC in exclusive-IP mode. I haven't tried it, but I'm fairly certain this won't work, as each zone will try to control the NIC itself. http://blogs.sun.com/stw/entry/using_ip_instances_with_vlans This is with Solaris 10 8/07, to take advantage of IP Instanced delivered in that update. Steffen My major concern is to get the global zone on one subnet, while the non-globals will be at least one other subnet, possibly others. Using shared-IP, I know we had routing issues. I can't remember if it was on the global side or the local, but I know there were issues. Perhaps this has been fixed in more recent releases? We are currently running Solaris 10 08/2007. At this point there wouldn't really be time to move up to the latest release, though we use UCE to patch the global up to date before we start building zones. Thanks for your help! ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] zoneroot on nfs?
Jason King wrote: I haven't found any documentation (yet, still looking), that says anything either way, but I'm wondering to facilitate zone migration if you can place a zone root on an NFS filesystem? Obviously would only be mounted on 1 server at any given time, but outside of that, just wondering if it should work, or if I should look at SAN/iscsi luns if I want to be able to move it around. It should work but its not recommended because NFS caching sucks ass. The synchronous nature of NFS means that its gonna be much slower than it should be. iSCSI/SAN may have performance issues over local disk as well, but at least you still have a local filesystem cache. benr. ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] zoneroot on nfs?
On Tue, Oct 21, 2008 at 01:17:29PM -0700, Ben Rockwood wrote: Jason King wrote: I haven't found any documentation (yet, still looking), that says anything either way, but I'm wondering to facilitate zone migration if you can place a zone root on an NFS filesystem? Obviously would only be mounted on 1 server at any given time, but outside of that, just wondering if it should work, or if I should look at SAN/iscsi luns if I want to be able to move it around. It should work but its not recommended because NFS caching sucks ass. The synchronous nature of NFS means that its gonna be much slower than it should be. iSCSI/SAN may have performance issues over local disk as well, but at least you still have a local filesystem cache. Hosting zone roots on NFS used to be explicitly not supported, and still might be for all I know, but I know of one customer that does just that nonetheless, though in a roundabout way, but using lofi on an NFS-mounted file to provide the backing for UFS/ZFS zone roots. Note though that, as with hosting zone roots over iSCSI, the semantics of that are very different from those of using NFS directly. For example, there's no ID mapping issues with zone roots on SAN, but there can be with zone roots on NAS, nor are there file locking semantics issues with zone roots on SAN. I strongly recommend zone roots on SAN (iSCSI, specifically), not NAS. Nico -- ___ zones-discuss mailing list zones-discuss@opensolaris.org
