search for: dmsetup

...tree for more information. Create and map band devices --------------------------- Create two band devices "band1" and "band2" and map them to "/dev/sda1" and "/dev/sda2" respectively. # echo "0 `blockdev --getsize /dev/sda1` band /dev/sda1 1" | dmsetup create band1 # echo "0 `blockdev --getsize /dev/sda2` band /dev/sda2 1" | dmsetup create band2 If the commands are successful then the device files "/dev/mapper/band1" and "/dev/mapper/band2" will have been created. Bandwidth control ---------------- In this exampl...

...tree for more information. Create and map band devices --------------------------- Create two band devices "band1" and "band2" and map them to "/dev/sda1" and "/dev/sda2" respectively. # echo "0 `blockdev --getsize /dev/sda1` band /dev/sda1 1" | dmsetup create band1 # echo "0 `blockdev --getsize /dev/sda2` band /dev/sda2 1" | dmsetup create band2 If the commands are successful then the device files "/dev/mapper/band1" and "/dev/mapper/band2" will have been created. Bandwidth control ---------------- In this exampl...

...ntroller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. Changes since 0.0.2 (23rd January): - Ported to linux-2.6.24. - Rename the name of this device-mapper device as "ioband." - The output format of "dmsetup table" can be recognized by "dmsetup create/load/reload." - Add a new feature to block processes requesting BIOs in case the number of the uncompleted BIOs becomes too large. - Gid can be used as an ioband group type. - Support "dmsetup suspend --noflush.&quot...

...ntroller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. Changes since 0.0.2 (23rd January): - Ported to linux-2.6.24. - Rename the name of this device-mapper device as "ioband." - The output format of "dmsetup table" can be recognized by "dmsetup create/load/reload." - Add a new feature to block processes requesting BIOs in case the number of the uncompleted BIOs becomes too large. - Gid can be used as an ioband group type. - Support "dmsetup suspend --noflush.&quot...

...ntroller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. Changes since 0.0.2 (23rd January): - Ported to linux-2.6.24. - Rename the name of this device-mapper device as "ioband." - The output format of "dmsetup table" can be recognized by "dmsetup create/load/reload." - Add a new feature to block processes requesting BIOs in case the number of the uncompleted BIOs becomes too large. - Gid can be used as an ioband group type. - Support "dmsetup suspend --noflush.&quot...

...he former VirtIO disks fail. The volumes are considered open by lvremove and nothing I have tried can get them to close for removal. The --force option has no effect on this situation. # /sbin/lvremove -f /dev/vg_vhost01/lv_vm_base Can't remove open logical volume "lv_vm_base" # dmsetup info -c vg_vhost01-lv_vm_base Name Maj Min Stat Open Targ Event UUID vg_vhost01-lv_vm_base 253 5 L--w 2 1 0 LVM-gXMt00E1RDjpSX3INLZ35Prtg66aX36BeAOlKIkmfSNQRNol3Hni920R4YVaZr52 # dmsetup remove vg_vhost01-lv_vm_base device-mapper: remove ioctl failed: Device or resou...

...he former VirtIO disks fail. The volumes are considered open by lvremove and nothing I have tried can get them to close for removal. The --force option has no effect on this situation. # /sbin/lvremove -f /dev/vg_vhost01/lv_vm_base Can't remove open logical volume "lv_vm_base" # dmsetup info -c vg_vhost01-lv_vm_base Name Maj Min Stat Open Targ Event UUID vg_vhost01-lv_vm_base 253 5 L--w 2 1 0 LVM-gXMt00E1RDjpSX3INLZ35Prtg66aX36BeAOlKIkmfSNQRNol3Hni920R4YVaZr52 # dmsetup remove vg_vhost01-lv_vm_base device-mapper: remove ioctl failed: Device or resou...

...ntroller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. Changes since 0.0.3 (5th February): - Improve the performance when many processes are issuing I/Os simultaneously. - Change the table format to fully support dmsetup table/load commands. The table format consists all configuration parameters. - Port to linux-2.6.25. An administration tool is available. It makes it easy to configure bandwidths of disk partitions. You can download it and find the manual at http://people.valinux.co.jp/~kaizuka/dm-ioband/i...

...ntroller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. Changes since 0.0.3 (5th February): - Improve the performance when many processes are issuing I/Os simultaneously. - Change the table format to fully support dmsetup table/load commands. The table format consists all configuration parameters. - Port to linux-2.6.25. An administration tool is available. It makes it easy to configure bandwidths of disk partitions. You can download it and find the manual at http://people.valinux.co.jp/~kaizuka/dm-ioband/i...

...ntroller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. Changes since 0.0.3 (5th February): - Improve the performance when many processes are issuing I/Os simultaneously. - Change the table format to fully support dmsetup table/load commands. The table format consists all configuration parameters. - Port to linux-2.6.25. An administration tool is available. It makes it easy to configure bandwidths of disk partitions. You can download it and find the manual at http://people.valinux.co.jp/~kaizuka/dm-ioband/i...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

...ation + + Build a kernel with these options enabled: + + CONFIG_MD + CONFIG_BLK_DEV_DM + CONFIG_DM_IOBAND + + + If compiled as module, use modprobe to load dm-ioband. + + # make modules + # make modules_install + # depmod -a + # modprobe dm-ioband + + + "dmsetup targets" command shows all available device-mapper targets. + "ioband" and the version number are displayed when dm-ioband has been + loaded. + + # dmsetup targets | grep ioband + ioband v1.0.0 + + + ------------------------------------------------------------...

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at