Re: [PVE-User] backup takes so long to finish
High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) Van: pve-user [mailto:pve-user-boun...@pve.proxmox.com] Namens Gilberto Nunes Verzonden: woensdag 27 augustus 2014 18:47 Aan: pve-user@pve.proxmox.com Onderwerp: [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
I/O in VM when you backup (SQL tasks etc) is slowing down backup. Van: Gilberto Nunes [mailto:gilberto.nune...@gmail.com] Verzonden: woensdag 27 augustus 2014 18:55 Aan: Bart Lageweg | Bizway CC: pve-user@pve.proxmox.com Onderwerp: Re: [PVE-User] backup takes so long to finish Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nlmailto:b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) Van: pve-user [mailto:pve-user-boun...@pve.proxmox.commailto:pve-user-boun...@pve.proxmox.com] Namens Gilberto Nunes Verzonden: woensdag 27 augustus 2014 18:47 Aan: pve-user@pve.proxmox.commailto:pve-user@pve.proxmox.com Onderwerp: [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Perhaps! But I have other VM's with SQL Server and running smoothly... Thanks anyway 2014-08-27 13:57 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: I/O in VM when you backup (SQL tasks etc) is slowing down backup. *Van:* Gilberto Nunes [mailto:gilberto.nune...@gmail.com] *Verzonden:* woensdag 27 augustus 2014 18:55 *Aan:* Bart Lageweg | Bizway *CC:* pve-user@pve.proxmox.com *Onderwerp:* Re: [PVE-User] backup takes so long to finish Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira -- Obrigado Cordialmente Gilberto Ferreira Konnecta TI Tecnologia - Sistemas de Virtualização, Soluções de Armazenamento de Dados, Criação de SAN/NAS, Zimbra Mail Server, Implantação de Linux e Windows server. Fundação Softville Rua Otto Boehm, 48 (47) 9676-7530 Skype: gilberto.nunes36 www.konnectati.com.br blog.konnectati.com.br ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Unfortunately, I do not have such luxury by now... SSD is out of the question, for a moment... But I changed from USB device to SAS device, in hope to improve the I/O performance... But no success... The VM itself, is running is SAS as well, since it hosted in an IBM Storage... I'm still search the cause of issue... Thank you BTW... 2014-08-27 14:04 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Mitigate the I/O bottleneck by assigning different hard drives, even consider using enterprise grade ssd. On Wed, Aug 27, 2014 at 6:55 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Maybe you will have better performance if you split them. So keep the busiest database on IBM storage and put the others on USB. This way you share the I/O load. Regards, Iosif On Wed, Aug 27, 2014 at 7:09 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Unfortunately, I do not have such luxury by now... SSD is out of the question, for a moment... But I changed from USB device to SAS device, in hope to improve the I/O performance... But no success... The VM itself, is running is SAS as well, since it hosted in an IBM Storage... I'm still search the cause of issue... Thank you BTW... 2014-08-27 14:04 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Mitigate the I/O bottleneck by assigning different hard drives, even consider using enterprise grade ssd. On Wed, Aug 27, 2014 at 6:55 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Just for compare, the very same backup from same VM takes 50 minutes, on previously scenario, I meant, run in a single IBM M4 server with SAS disks... Now, in the Storage and an IBM x3250 M4 server, with 128GB of memory, takes 6 hours! I can't understand why! So weird! 2014-08-27 14:21 GMT-03:00 Gilberto Nunes gilberto.nune...@gmail.com: Well... This not justify all this low performance, since the VM previously ran on another IBM machine with single SAS and backup task ran nicely. Since the VM now running in high level enterprise Storage, I expected more performance, if I am not wrong with that... 2014-08-27 14:13 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Maybe you will have better performance if you split them. So keep the busiest database on IBM storage and put the others on USB. This way you share the I/O load. Regards, Iosif On Wed, Aug 27, 2014 at 7:09 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Unfortunately, I do not have such luxury by now... SSD is out of the question, for a moment... But I changed from USB device to SAS device, in hope to improve the I/O performance... But no success... The VM itself, is running is SAS as well, since it hosted in an IBM Storage... I'm still search the cause of issue... Thank you BTW... 2014-08-27 14:04 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Mitigate the I/O bottleneck by assigning different hard drives, even consider using enterprise grade ssd. On Wed, Aug 27, 2014 at 6:55 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Is the storage over iSCSI ? Yes! Standard iSCSI. I not enable trunk yet, I meant, bonding... You know... Is the storage via 1GB link ? Yes... Switch gigaethernet, CAT6 and all NIC are gigaethernet as well... 2014-08-27 14:33 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Is the storage over iSCSI ? Is the storage via 1GB link ? On Wed, Aug 27, 2014 at 7:29 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Just for compare, the very same backup from same VM takes 50 minutes, on previously scenario, I meant, run in a single IBM M4 server with SAS disks... Now, in the Storage and an IBM x3250 M4 server, with 128GB of memory, takes 6 hours! I can't understand why! So weird! 2014-08-27 14:21 GMT-03:00 Gilberto Nunes gilberto.nune...@gmail.com: Well... This not justify all this low performance, since the VM previously ran on another IBM machine with single SAS and backup task ran nicely. Since the VM now running in high level enterprise Storage, I expected more performance, if I am not wrong with that... 2014-08-27 14:13 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Maybe you will have better performance if you split them. So keep the busiest database on IBM storage and put the others on USB. This way you share the I/O load. Regards, Iosif On Wed, Aug 27, 2014 at 7:09 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Unfortunately, I do not have such luxury by now... SSD is out of the question, for a moment... But I changed from USB device to SAS device, in hope to improve the I/O performance... But no success... The VM itself, is running is SAS as well, since it hosted in an IBM Storage... I'm still search the cause of issue... Thank you BTW... 2014-08-27 14:04 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Mitigate the I/O bottleneck by assigning different hard drives, even consider using enterprise grade ssd. On Wed, Aug 27, 2014 at 6:55 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user Gilberto Ferreira Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Probably there is the bottleneck. 1Gbit = 100MB/s. Probably your SAS might be faster than considering it uses SATA II 300 MB/s or SATA III 600 MB/s. On Wed, Aug 27, 2014 at 7:35 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Is the storage over iSCSI ? Yes! Standard iSCSI. I not enable trunk yet, I meant, bonding... You know... Is the storage via 1GB link ? Yes... Switch gigaethernet, CAT6 and all NIC are gigaethernet as well... 2014-08-27 14:33 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Is the storage over iSCSI ? Is the storage via 1GB link ? On Wed, Aug 27, 2014 at 7:29 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Just for compare, the very same backup from same VM takes 50 minutes, on previously scenario, I meant, run in a single IBM M4 server with SAS disks... Now, in the Storage and an IBM x3250 M4 server, with 128GB of memory, takes 6 hours! I can't understand why! So weird! 2014-08-27 14:21 GMT-03:00 Gilberto Nunes gilberto.nune...@gmail.com: Well... This not justify all this low performance, since the VM previously ran on another IBM machine with single SAS and backup task ran nicely. Since the VM now running in high level enterprise Storage, I expected more performance, if I am not wrong with that... 2014-08-27 14:13 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Maybe you will have better performance if you split them. So keep the busiest database on IBM storage and put the others on USB. This way you share the I/O load. Regards, Iosif On Wed, Aug 27, 2014 at 7:09 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Unfortunately, I do not have such luxury by now... SSD is out of the question, for a moment... But I changed from USB device to SAS device, in hope to improve the I/O performance... But no success... The VM itself, is running is SAS as well, since it hosted in an IBM Storage... I'm still search the cause of issue... Thank you BTW... 2014-08-27 14:04 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Mitigate the I/O bottleneck by assigning different hard drives, even consider using enterprise grade ssd. On Wed, Aug 27, 2014 at 6:55 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user Gilberto Ferreira Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
ok 2014-08-27 15:14 GMT-03:00 Dietmar Maurer diet...@proxmox.com: Please can you stop double posting to the list and the forum? Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
Well I don´t know exactly but perhaps the reason is because the VM is hosted over LVM-on-iSCSI??? Just a idea...I am really lost here...Trying find a reason to explain all the lost of performance... I took all necessary cares about cables, switches, storage and now a simple backup task takes so long to finish... I am stunned!... 2014-08-27 14:53 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Probably there is the bottleneck. 1Gbit = 100MB/s. Probably your SAS might be faster than considering it uses SATA II 300 MB/s or SATA III 600 MB/s. On Wed, Aug 27, 2014 at 7:35 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Is the storage over iSCSI ? Yes! Standard iSCSI. I not enable trunk yet, I meant, bonding... You know... Is the storage via 1GB link ? Yes... Switch gigaethernet, CAT6 and all NIC are gigaethernet as well... 2014-08-27 14:33 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Is the storage over iSCSI ? Is the storage via 1GB link ? On Wed, Aug 27, 2014 at 7:29 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Just for compare, the very same backup from same VM takes 50 minutes, on previously scenario, I meant, run in a single IBM M4 server with SAS disks... Now, in the Storage and an IBM x3250 M4 server, with 128GB of memory, takes 6 hours! I can't understand why! So weird! 2014-08-27 14:21 GMT-03:00 Gilberto Nunes gilberto.nune...@gmail.com: Well... This not justify all this low performance, since the VM previously ran on another IBM machine with single SAS and backup task ran nicely. Since the VM now running in high level enterprise Storage, I expected more performance, if I am not wrong with that... 2014-08-27 14:13 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Maybe you will have better performance if you split them. So keep the busiest database on IBM storage and put the others on USB. This way you share the I/O load. Regards, Iosif On Wed, Aug 27, 2014 at 7:09 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Unfortunately, I do not have such luxury by now... SSD is out of the question, for a moment... But I changed from USB device to SAS device, in hope to improve the I/O performance... But no success... The VM itself, is running is SAS as well, since it hosted in an IBM Storage... I'm still search the cause of issue... Thank you BTW... 2014-08-27 14:04 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com: Mitigate the I/O bottleneck by assigning different hard drives, even consider using enterprise grade ssd. On Wed, Aug 27, 2014 at 6:55 PM, Gilberto Nunes gilberto.nune...@gmail.com wrote: Hum... At first moment, I thought I/O could being a trouble, since I was ran backup in USB devices. But now, I ran backup task on SAS disk! So performance and I/O is not an issue here... And, I can't shrink the file, because the entire disk is being used to all databases as I described before... If somebody else has any other advice, I will appreciate... Thank you 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl: High I/O when you backup ? Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good backup!) *Van:* pve-user [mailto:pve-user-boun...@pve.proxmox.com] *Namens *Gilberto Nunes *Verzonden:* woensdag 27 augustus 2014 18:47 *Aan:* pve-user@pve.proxmox.com *Onderwerp:* [PVE-User] backup takes so long to finish Hello I have a VM with Windows 2012 running nicely in PVE 3.2. This VM has a 300 GB disk size that was re-partition with 5 or 6 different parts, in order to allocate different databases... The issue is that the backup task takes 6 hours to generate a lzo file with 13 GB size! However, I have another VM, which is Windows 2008 with disk 120 GB size. The backup makes 74 GB file of size, and takes approximately 30 minutes!!! I can't see why the first task took so long time to finish!!! Can anybody assist me?? Thanks Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user Gilberto Ferreira Gilberto Ferreira Gilberto Ferreira Gilberto Ferreira ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Re: [PVE-User] backup takes so long to finish
On Wed, 27 Aug 2014 15:36:19 -0300 Gilberto Nunes gilberto.nune...@gmail.com wrote: Just a idea...I am really lost here...Trying find a reason to explain all the lost of performance... I took all necessary cares about cables, switches, storage and now a simple backup task takes so long to finish... I am stunned!... How about alignment. Is the LVM volume properly aligned to the iSCSI disk? Is the file system in the guest aware of the alignment in LVM? Since LVM defaults to 4k alignment you could try experimenting with advanced format of your Windows disk - http://blogs.technet.com/b/filecab/archive/2011/04/26/using-4k-sector-and-advanced-format-drives-in-windows-hotfix-and-support-info-for-windows-server-2008-r2-and-windows-7.aspx -- Hilsen/Regards Michael Rasmussen Get my public GnuPG keys: michael at rasmussen dot cc http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xD3C9A00E mir at datanom dot net http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE501F51C mir at miras dot org http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE3E80917 -- /usr/games/fortune -es says: Death has been proven to be 99% fatal in laboratory rats. pgpnK68h0sN0v.pgp Description: OpenPGP digital signature ___ pve-user mailing list pve-user@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
