Lv information system

Author: d | 2025-04-24

Downloading LV Information System 1.1. LV Information System is a software for companies to have a complete view of economic activities. FEATURES OF LV INFORMATION SYSTEM:

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'lvconvert --merge my_vg/my_lv_rimage_2' to merge back into my_lv Optional: View the logical volume after splitting the image: # lvs -a -o name,copy_percent,devices my_vg LV Copy% Devices my_lv 100.00 my_lv_rimage_0(0),my_lv_rimage_1(0) [my_lv_rimage_0] /dev/sdc1(1) [my_lv_rimage_1] /dev/sdd1(1) [my_lv_rmeta_0] /dev/sdc1(0) [my_lv_rmeta_1] /dev/sdd1(0) Merge the volume back into the array: # lvconvert --merge my_vg/my_lv_rimage_1 my_vg/my_lv_rimage_1 successfully merged back into my_vg/my_lvVerification View the merged logical volume: # lvs -a -o name,copy_percent,devices my_vg LV Copy% Devices my_lv 100.00 my_lv_rimage_0(0),my_lv_rimage_1(0) [my_lv_rimage_0] /dev/sdc1(1) [my_lv_rimage_1] /dev/sdd1(1) [my_lv_rmeta_0] /dev/sdc1(0) [my_lv_rmeta_1] /dev/sdd1(0)Additional resources lvconvert(8) man page on your system 9.17. Setting the RAID fault policy to allocate You can set the raid_fault_policy field to the allocate parameter in the /etc/lvm/lvm.conf file. With this preference, the system attempts to replace the failed device with a spare device from the volume group. If there is no spare device, the system log includes this information. Procedure View the RAID logical volume: # lvs -a -o name,copy_percent,devices my_vg LV Copy% Devices my_lv 100.00 my_lv_rimage_0(0),my_lv_rimage_1(0),my_lv_rimage_2(0) [my_lv_rimage_0] /dev/sdb1(1) [my_lv_rimage_1] /dev/sdc1(1) [my_lv_rimage_2] /dev/sdd1(1) [my_lv_rmeta_0] /dev/sdb1(0) [my_lv_rmeta_1] /dev/sdc1(0) [my_lv_rmeta_2] /dev/sdd1(0) View the RAID logical volume if the /dev/sdb device fails: # lvs --all --options name,copy_percent,devices my_vg /dev/sdb: open failed: No such device or address Couldn't find device with uuid A4kRl2-vIzA-uyCb-cci7-bOod-H5tX-IzH4Ee. WARNING: Couldn't find all devices for LV my_vg/my_lv_rimage_1 while checking used and assumed devices. WARNING: Couldn't find all devices for LV my_vg/my_lv_rmeta_1 while checking used and assumed devices. LV Copy% Devices my_lv 100.00 my_lv_rimage_0(0),my_lv_rimage_1(0),my_lv_rimage_2(0) [my_lv_rimage_0] [unknown](1) [my_lv_rimage_1] /dev/sdc1(1) [...] You can also view the system log for the error messages if

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The /dev/sdb device fails. Set the raid_fault_policy field to allocate in the lvm.conf file: # vi /etc/lvm/lvm.conf raid_fault_policy = "allocate" If you set raid_fault_policy to allocate but there are no spare devices, the allocation fails, leaving the logical volume as it is. If the allocation fails, you can fix and replace the failed device by using the lvconvert --repair command. For more information, see Replacing a failed RAID device in a logical volume. Verification Verify if the failed device is now replaced with a new device from the volume group: # lvs -a -o name,copy_percent,devices my_vg Couldn't find device with uuid 3lugiV-3eSP-AFAR-sdrP-H20O-wM2M-qdMANy. LV Copy% Devices lv 100.00 lv_rimage_0(0),lv_rimage_1(0),lv_rimage_2(0) [lv_rimage_0] /dev/sdh1(1) [lv_rimage_1] /dev/sdc1(1) [lv_rimage_2] /dev/sdd1(1) [lv_rmeta_0] /dev/sdh1(0) [lv_rmeta_1] /dev/sdc1(0) [lv_rmeta_2] /dev/sdd1(0) Even though the failed device is now replaced, the display still indicates that LVM could not find the failed device because the device is not yet removed from the volume group. You can remove the failed device from the volume group by executing the vgreduce --removemissing my_vg command. Additional resources lvm.conf(5) man page on your system 9.18. Setting the RAID fault policy to warn You can set the raid_fault_policy field to the warn parameter in the lvm.conf file. With this preference, the system adds a warning to the system log that indicates a failed device. Based on the warning, you can determine the further steps. By default, the value of the raid_fault_policy field is warn in lvm.conf. Procedure View the RAID logical volume: # lvs -a -o name,copy_percent,devices my_vg LV

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Power substationsEarly consultation with the local Electricity Distributor is essential for agreement on a mutually approved MV/LV substation to act as the intake point for a particular site. This consultation is usually before detailed knowledge of the plant or project is known but it is essential that a fairly accurate load requirement be determined.MV/LV Power Substations Design and Schematics Notes (Network Supply & Enclosure Types)Plant manufacturers must be approached to provide information relative to the equipment they are supplying and this, together with experience, enables a reasonably reliable load demand to be ascertained. Having this knowledge enables the rating of the power transformers and of associated switchgear to be decided.All substations ought to be designed to be capable of extension unless it is obvious that such a facility will not be needed.The extent of such provisions must be weighed against the monetary outlay and be agreed as a viable proposition.Depending on the nature of the system the substations may be required to accommodate MV and/or LV switchgear, transformer(s) and protective and control facilities. They can be wholly or partially outdoor or indoor and can take many forms.Standard equipment should be selected as far as possible to keep cost and delivery to reasonable levels. This equipment should comply with an appropriate standard (in the UK this would be a British standard).Article is divided into two sections: the various network supply arrangements possible which determine the nature of the equipment utilised, and how this equipment is laid out and protected, i.e. the type of enclosure provided.Contents: Medium voltage substations Substation with Ring-main unit Duplicate supply substation Single-supply substation Low voltage substations Fault clearance Substation enclosures Outdoor substations Outdoor/indoor substations Indoor substations Substation cabling 1. Medium voltage substationsThere are three common ways that an 11kV supply may be provided to a site: by a ring main, by duplicate feeders, or by a radial feeder or a single spur from a radial feeder.The duplicate supply may be provided with either automatic or manual changeover facilities. 1.1 Substation with Ring-main unitA ring-main unit consists of two manually operated incoming isolators and a tee-off circuit to an 11kV/400V/230V transformer. The tee-off may be controlled by a circuit-breaker or a fuse-switch, both providing a measure of protection to the transformer and acting as a back-up to the LV consumer’s network.This is a very common arrangement.If the site contains three-phase motors at various points remote from the substation, the designer may provide a motor control centre (MCC) at the substation either integral with the main distribution board or adjacent to it.Alternatively, a number of circuits may be established to supply motor starters at sites closer to the motors.The main distribution board may also supply local general services such. Downloading LV Information System 1.1. LV Information System is a software for companies to have a complete view of economic activities. FEATURES OF LV INFORMATION SYSTEM:

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With size 8.00 MiB.Logical volume "test-lv_rimage_1_imeta" created.Logical volume "test-lv" created. To add DM integrity to an existing RAID LV, use the following command: # lvconvert --raidintegrity y my_vg/test-lv Adding integrity to a RAID LV limits the number of operations that you can perform on that RAID LV. Optional: Remove the integrity before performing certain operations. # lvconvert --raidintegrity n my_vg/test-lvLogical volume my_vg/test-lv has removed integrity.Verification View information about the added DM integrity: View information about the test-lv RAID LV that was created in the my_vg volume group: # lvs -a my_vg LV VG Attr LSize Origin Cpy%Sync test-lv my_vg rwi-a-r--- 256.00m 2.10 [test-lv_rimage_0] my_vg gwi-aor--- 256.00m [test-lv_rimage_0_iorig] 93.75 [test-lv_rimage_0_imeta] my_vg ewi-ao---- 8.00m [test-lv_rimage_0_iorig] my_vg -wi-ao---- 256.00m [test-lv_rimage_1] my_vg gwi-aor--- 256.00m [test-lv_rimage_1_iorig] 85.94 [...] The following describes different options from this output: g attribute It is the list of attributes under the Attr column indicates that the RAID image is using integrity. The integrity stores the checksums in the _imeta RAID LV. Cpy%Sync column It indicates the synchronization progress for both the top level RAID LV and for each RAID image. RAID image It is is indicated in the LV column by raid_image_N. LV column It ensures that the synchronization progress displays 100% for the top level RAID LV and for each RAID image. Display the type for each RAID LV: # lvs -a my-vg -o+segtype LV VG Attr LSize Origin Cpy%Sync Type test-lv my_vg rwi-a-r--- 256.00m 87.96 raid1 [test-lv_rimage_0] my_vg gwi-aor--- 256.00m [test-lv_rimage_0_iorig] 100.00 integrity [test-lv_rimage_0_imeta] my_vg ewi-ao---- 8.00m linear

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[test-lv_rimage_0_iorig] my_vg -wi-ao---- 256.00m linear [test-lv_rimage_1] my_vg gwi-aor--- 256.00m [test-lv_rimage_1_iorig] 100.00 integrity [...] There is an incremental counter that counts the number of mismatches detected on each RAID image. View the data mismatches detected by integrity from rimage_0 under my_vg/test-lv: # lvs -o+integritymismatches my_vg/test-lv_rimage_0 LV VG Attr LSize Origin Cpy%Sync IntegMismatches [test-lv_rimage_0] my_vg gwi-aor--- 256.00m [test-lv_rimage_0_iorig] 100.00 0 In this example, the integrity has not detected any data mismatches and thus the IntegMismatches counter shows zero (0). View the data integrity information in the /var/log/messages log files, as shown in the following examples: Example 9.1. Example of dm-integrity mismatches from the kernel message logs device-mapper: integrity: dm-12: Checksum failed at sector 0x24e7 Example 9.2. Example of dm-integrity data corrections from the kernel message logs md/raid1:mdX: read error corrected (8 sectors at 9448 on dm-16) Additional resources lvcreate(8) and lvmraid(7) man pages on your system 9.10. Converting a RAID logical volume to another RAID level LVM supports RAID takeover, which means converting a RAID logical volume from one RAID level to another, for example, from RAID 5 to RAID 6. You can change the RAID level to increase or decrease resilience to device failures. Procedure Create a RAID logical volume: # lvcreate --type raid5 -i 3 -L 500M -n my_lv my_vgUsing default stripesize 64.00 KiB.Rounding size 500.00 MiB (125 extents) up to stripe boundary size 504.00 MiB (126 extents).Logical volume "my_lv" created. View the RAID logical volume: # lvs -a -o +devices,segtype LV VG Attr LSize Pool Origin Data% Meta% Move

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Means, if you are level 20, you will receive 2 SP and BP, 30 would be 3 SP and BP, and so forth.Example:Fighter (Lv.10) - Class change into Priest - Gain 1 extra SP / BPFighter (Lv. 19) - Class change into Priest - Gain 1 extra SP / BPFighter (Lv. 20) - Class change into Priest - Gain 2 extra SP / BPFighter (Lv.30) - Class change into Priest - Gain 3 extra SP / BPThese skill points and bonus points do not constantly carry, however.Example:Fighter (Lv.20) - Class change into Priest - Gain 2 extra SP / BP (Starts with 3 SP)The same Priest (Lv.10) - Class change into Fighter - Gain 1 extra SP / BP (Starts with 2 SP)The extra skill points and bonus points only kick into effect for the next class you're playing - they do not constantly carry over to your future classes, creating what you would think to be potential infinite SP/BP.Re-rolling[]When you choose to class change, you get the ability to re-roll your points. Thus, if you initially rolled a 10, you can choose to try and re-roll for a higher value, such as a 20 or better. Note that this may take a long time, as rolls above a 12 are quite rare.Skill Inheritance[]Soul RankSkill SlotsSkill Points53363683109410104151242014425165251853020535With every Soul Rank you hit, you may possibly unlock more possibilities for how many more skills and skill points you may carry over.Now we can go over how the actual inheritance system actually works. We'll go through it first via an example scenario.Scenario 1A) Player is currently SR5, and has made a level 10 character to class change.B) Player is a Priest, and wishes to carry over Heal, Divine Armor, Stun Smash.C) At SR5, Player has 3 Skill Slots and 3 SP for inheritance.D) Player carries over Heal (lv.1), Divine Armor (lv.1), Stun Smash (lv.1)This scenario passes.Scenario 2.A) Player is currently SR5, and has made a level 10 character to class change.B) Player is a Priest, and wishes to carry over Heal, Divine Armor, Stun Smash.C) Player's current points trained in skills are: Heal (lv.1), Divine Armor (lv.1), Stun Smash (lv.2)D) Player tries to carry over all three skills, but is unable to, because Stun Smash being at lv.2 makes it so that it breaks the skill point capacity.This scenario does not pass.Basically, while you are given a number of skills to be carried over, and skill points as well, your current skills have to match up with the requirements. Therefore, players must plan their skill trees prior to class changing to carry what they want over.Of course, not all skill slots have to be used up, and you're free to not use. Downloading LV Information System 1.1. LV Information System is a software for companies to have a complete view of economic activities. FEATURES OF LV INFORMATION SYSTEM: Download LV Information System latest version for Windows. LV Information System latest update: Febru