Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management. I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation. Please consider the following steps: 1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB) 2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB 3) Use according to your needs (even noop is OK) 4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB) 5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious? My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts. Best regards, Giorgio.
Hi, LUNs size are being updated using the multipath mechanism. In order to update storage domain size, you'll need to update the physical volume size using LVM on you hypervisors. Please do the following: 1) Put the storage domain to maintenance 2) Execute on your hosts: 'pvresize --setphysicalvolumesize' with the new physical volume size (150G) 3) Activate the storage domain ----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "users@ovirt.org" <Users@ovirt.org> Sent: Monday, March 17, 2014 7:25:36 PM Subject: [Users] SAN storage expansion Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management. I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation. Please consider the following steps: 1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB) 2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB 3) Use according to your needs (even noop is OK) 4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB) 5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious? My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts. Best regards, Giorgio. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
2014-03-18 9:15 GMT+01:00 Elad Ben Aharon <ebenahar@redhat.com>:
Hi,
LUNs size are being updated using the multipath mechanism. In order to update storage domain size, you'll need to update the physical volume size using LVM on you hypervisors.
Please do the following: 1) Put the storage domain to maintenance 2) Execute on your hosts: 'pvresize --setphysicalvolumesize' with the new physical volume size (150G) 3) Activate the storage domain
Thank you Elad, I knew it was required a pvresize command but wanted to be sure that I wasn't disrupting possible storage parameters bookkeeping by the oVirt system. I'm wondering if it's because of this that SD has to be put in maintenance. Any chance to have the SD resize without putting it offline, for example doing pvresize on the SPM node and then pvscan on every other host involved? I'm sure there are use cases where this is would be of great convenience.
----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "users@ovirt.org" <Users@ovirt.org> Sent: Monday, March 17, 2014 7:25:36 PM Subject: [Users] SAN storage expansion
Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management.
I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation.
Please consider the following steps:
1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB)
2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB
3) Use according to your needs (even noop is OK)
4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB)
5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB
BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB
Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious?
My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts.
Best regards, Giorgio. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Hi Giorgio, perhaps i missed something - but why don't you want to extend the domain by right click and editing it? ----- Original Message -----
From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "Elad Ben Aharon" <ebenahar@redhat.com> Cc: "users@ovirt.org" <Users@ovirt.org> Sent: Tuesday, March 18, 2014 11:28:14 AM Subject: Re: [Users] SAN storage expansion
2014-03-18 9:15 GMT+01:00 Elad Ben Aharon <ebenahar@redhat.com>:
Hi,
LUNs size are being updated using the multipath mechanism. In order to update storage domain size, you'll need to update the physical volume size using LVM on you hypervisors.
Please do the following: 1) Put the storage domain to maintenance 2) Execute on your hosts: 'pvresize --setphysicalvolumesize' with the new physical volume size (150G) 3) Activate the storage domain
Thank you Elad, I knew it was required a pvresize command but wanted to be sure that I wasn't disrupting possible storage parameters bookkeeping by the oVirt system. I'm wondering if it's because of this that SD has to be put in maintenance.
Any chance to have the SD resize without putting it offline, for example doing pvresize on the SPM node and then pvscan on every other host involved? I'm sure there are use cases where this is would be of great convenience.
----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "users@ovirt.org" <Users@ovirt.org> Sent: Monday, March 17, 2014 7:25:36 PM Subject: [Users] SAN storage expansion
Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management.
I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation.
Please consider the following steps:
1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB)
2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB
3) Use according to your needs (even noop is OK)
4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB)
5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB
BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB
Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious?
My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts.
Best regards, Giorgio. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
2014-03-18 11:00 GMT+01:00 Liron Aravot <laravot@redhat.com>:
Hi Giorgio, perhaps i missed something - but why don't you want to extend the domain by right click and editing it?
Hi Liron, we are talking about an iSCSI storage domain. In the edit dialogue I don't see anything regarding resize or extend. If I just click OK at this point nothing changes. Maybe it's me that I'm missing something. Which action could trigger a pvresize ? In the meantime I'll try Elad's procedure.
----- Original Message -----
From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "Elad Ben Aharon" <ebenahar@redhat.com> Cc: "users@ovirt.org" <Users@ovirt.org> Sent: Tuesday, March 18, 2014 11:28:14 AM Subject: Re: [Users] SAN storage expansion
2014-03-18 9:15 GMT+01:00 Elad Ben Aharon <ebenahar@redhat.com>:
Hi,
LUNs size are being updated using the multipath mechanism. In order to update storage domain size, you'll need to update the physical volume size using LVM on you hypervisors.
Please do the following: 1) Put the storage domain to maintenance 2) Execute on your hosts: 'pvresize --setphysicalvolumesize' with the new physical volume size (150G) 3) Activate the storage domain
Thank you Elad, I knew it was required a pvresize command but wanted to be sure that I wasn't disrupting possible storage parameters bookkeeping by the oVirt system. I'm wondering if it's because of this that SD has to be put in maintenance.
Any chance to have the SD resize without putting it offline, for example doing pvresize on the SPM node and then pvscan on every other host involved? I'm sure there are use cases where this is would be of great convenience.
----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "users@ovirt.org" <Users@ovirt.org> Sent: Monday, March 17, 2014 7:25:36 PM Subject: [Users] SAN storage expansion
Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management.
I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation.
Please consider the following steps:
1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB)
2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB
3) Use according to your needs (even noop is OK)
4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB)
5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB
BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB
Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious?
My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts.
Best regards, Giorgio.
On 03/18/2014 06:29 AM, Giorgio Bersano wrote:
2014-03-18 11:00 GMT+01:00 Liron Aravot <laravot@redhat.com>:
Hi Giorgio, perhaps i missed something - but why don't you want to extend the domain by right click and editing it?
Hi Liron, we are talking about an iSCSI storage domain. In the edit dialogue I don't see anything regarding resize or extend. If I just click OK at this point nothing changes. Maybe it's me that I'm missing something.
Which action could trigger a pvresize ?
not yet. but you can simply add another LUN to the domain, which will under the hoods create another PV, add it to the VG, and refresh all hosts in the DC to see them, etc.
In the meantime I'll try Elad's procedure.
----- Original Message -----
From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "Elad Ben Aharon" <ebenahar@redhat.com> Cc: "users@ovirt.org" <Users@ovirt.org> Sent: Tuesday, March 18, 2014 11:28:14 AM Subject: Re: [Users] SAN storage expansion
2014-03-18 9:15 GMT+01:00 Elad Ben Aharon <ebenahar@redhat.com>:
Hi,
LUNs size are being updated using the multipath mechanism. In order to update storage domain size, you'll need to update the physical volume size using LVM on you hypervisors.
Please do the following: 1) Put the storage domain to maintenance 2) Execute on your hosts: 'pvresize --setphysicalvolumesize' with the new physical volume size (150G) 3) Activate the storage domain
Thank you Elad, I knew it was required a pvresize command but wanted to be sure that I wasn't disrupting possible storage parameters bookkeeping by the oVirt system. I'm wondering if it's because of this that SD has to be put in maintenance.
Any chance to have the SD resize without putting it offline, for example doing pvresize on the SPM node and then pvscan on every other host involved? I'm sure there are use cases where this is would be of great convenience.
----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "users@ovirt.org" <Users@ovirt.org> Sent: Monday, March 17, 2014 7:25:36 PM Subject: [Users] SAN storage expansion
Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management.
I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation.
Please consider the following steps:
1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB)
2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB
3) Use according to your needs (even noop is OK)
4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB)
5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB
BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB
Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious?
My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts.
Best regards, Giorgio.
Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
2014-03-18 10:28 GMT+01:00 Giorgio Bersano <giorgio.bersano@gmail.com>:
2014-03-18 9:15 GMT+01:00 Elad Ben Aharon <ebenahar@redhat.com>:
Hi,
LUNs size are being updated using the multipath mechanism. In order to update storage domain size, you'll need to update the physical volume size using LVM on you hypervisors.
Please do the following: 1) Put the storage domain to maintenance 2) Execute on your hosts: 'pvresize --setphysicalvolumesize' with the new physical volume size (150G) 3) Activate the storage domain
Thank you Elad, I knew it was required a pvresize command but wanted to be sure that I wasn't disrupting possible storage parameters bookkeeping by the oVirt system. I'm wondering if it's because of this that SD has to be put in maintenance.
Any chance to have the SD resize without putting it offline, for example doing pvresize on the SPM node and then pvscan on every other host involved? I'm sure there are use cases where this is would be of great convenience.
Well, I'm back on this. First of all, Elad, your procedure works indeed. Moreover, I tried this sequence: 1) Expand the volume using storage specific tools 2) on the SPM host execute pvresize /path/of/the/physical/volume # (no need to specify the size, it takes the full volume space) 3) (just to be sure) on every other host involved execute pvscan 4) the SD is shown with correct, updated, informations. Maybe I am overzealous but I prefer to ask the experts: Not putting the SD to maintenance could give unexpected consequences? TIA, Giorgio.
----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "users@ovirt.org" <Users@ovirt.org> Sent: Monday, March 17, 2014 7:25:36 PM Subject: [Users] SAN storage expansion
Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management.
I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation.
Please consider the following steps:
1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB)
2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB
3) Use according to your needs (even noop is OK)
4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB)
5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB
BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB
Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious?
My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts.
Best regards, Giorgio. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Daniel? ----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "Elad Ben Aharon" <ebenahar@redhat.com> Cc: "users@ovirt.org" <Users@ovirt.org>, "Daniel Erez" <derez@redhat.com>, "Gadi Ickowicz" <gickowic@redhat.com>, "Liron Aravot" <laravot@redhat.com> Sent: Wednesday, March 19, 2014 4:12:35 PM Subject: Re: [Users] SAN storage expansion 2014-03-18 10:28 GMT+01:00 Giorgio Bersano <giorgio.bersano@gmail.com>:
2014-03-18 9:15 GMT+01:00 Elad Ben Aharon <ebenahar@redhat.com>:
Hi,
LUNs size are being updated using the multipath mechanism. In order to update storage domain size, you'll need to update the physical volume size using LVM on you hypervisors.
Please do the following: 1) Put the storage domain to maintenance 2) Execute on your hosts: 'pvresize --setphysicalvolumesize' with the new physical volume size (150G) 3) Activate the storage domain
Thank you Elad, I knew it was required a pvresize command but wanted to be sure that I wasn't disrupting possible storage parameters bookkeeping by the oVirt system. I'm wondering if it's because of this that SD has to be put in maintenance.
Any chance to have the SD resize without putting it offline, for example doing pvresize on the SPM node and then pvscan on every other host involved? I'm sure there are use cases where this is would be of great convenience.
Well, I'm back on this. First of all, Elad, your procedure works indeed. Moreover, I tried this sequence: 1) Expand the volume using storage specific tools 2) on the SPM host execute pvresize /path/of/the/physical/volume # (no need to specify the size, it takes the full volume space) 3) (just to be sure) on every other host involved execute pvscan 4) the SD is shown with correct, updated, informations. Maybe I am overzealous but I prefer to ask the experts: Not putting the SD to maintenance could give unexpected consequences? TIA, Giorgio.
----- Original Message ----- From: "Giorgio Bersano" <giorgio.bersano@gmail.com> To: "users@ovirt.org" <Users@ovirt.org> Sent: Monday, March 17, 2014 7:25:36 PM Subject: [Users] SAN storage expansion
Hi all, I'm happily continuing my experiments with oVirt and I need a suggestion regarding storage management.
I'm using an iSCSI based Storage Domain and I'm trying to understand which is the correct way to extend it's size some time after it's creation.
Please consider the following steps:
1) Using storage specific tools create a new volume on iSCSI storage (e.g. 130.0 GiB)
2) in oVirt webadmin: Storage -> New Domain , select the previously created storage (130 GB), OK, after some time it's online: Size: 129 GB ; Available: 125 GB ; Used: 4 GB
3) Use according to your needs (even noop is OK)
4) Using storage specific tools expand the new volume (e.g. 20.0 GiB more, now it says 150.0GiB)
5) in webadmin: Storage, click on the domain, Edit. Looking at Luns>Targets , now it correctly sees 150GB
BUT on the Storage tab it continues to be seen with Size: 129 GB ; Available: 125 GB ; Used: 4 GB
Do you think it is possible to make oVirt aware of the new available storage space? Am I missing something obvious?
My setup is oVirt 3.4.0 RC2 with fully patched CentOS 6.5 hosts.
Best regards, Giorgio. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
participants (4)
-
Elad Ben Aharon -
Giorgio Bersano -
Itamar Heim -
Liron Aravot