8/5/2023 0 Comments 3par copy spaceHow to display date and time for all system nodes How to display the license keys installed How to display the status of the system hardware and software components To see WWNs that are not assigned to any hosts yet Show status of selected chunklets of physical disks How to move data from specified PD to a temp location selected by the system How to dismiss one or more physical disks from use How to perform surface admit one or all physical disks to enable their use How to admit one or all physical disks to enable their use Perform validity checks of data on logical disks Perform validity checks of virtual volume administrativeĭisplay block mapping info for vvs/lds/pds The other 1% of the allocated space is for system internalĪlso I have this information, is a CSV file.Display virtual volumes (VVs) in the system The 11% of the allocated space is for system spare and The 88% of the allocated space is for CPGs Volumes The system reports 116,728.000GiB as total RAW space. When I get into the Management Console I can see the next data. I Have a 3PAR 7400 with two nodes and this disks. I have a question about usable space too. if you are about to get a quote for a new system, then make shure there will be space for extra HDs in - cages without disks does not cost mutch to add from start - in my case I have 6 cages and 1 controller cage (7x24 HDs) - leaving space for 168 HDs - although only using 112 HDs are assigned by now. Hope you can use this for calculating your needs. Going from 3½" to 2½" system have also lowered the power requirement to half and the cooling as well - I belive this would have been the same with Netapp (they are using the same HW OEM supplier - cages are visually identical beside the color We are very happy by the switch from Netapp to 3Par - much simpler to maintain and daily tasks can be dealt with in-house instead of consultans - it takes aprox 1 day and you can manage it easyly. My server performance HAS gained significant and client wait time HAS been reduced. Netapp give less usable space for the same amount of raw storage and is less flexible - since you have to assign disks to aggregates and a disk is owned by a controller - here all disks belongs by default to 1 big pool owned by any controller, from witch your CPG's automatically takes what is needed. I’m coming from a Netapp of similar size (84 x FC 10/15 K HDs), and to my experience the 3Par is by far the best product. ![]() Since my 72 Tb is the usable space without raid, this will be approx. 30 LUNS totaling at about 186 Tb Thin provisioned and these holds approx. raid 5 uses 3 data + 1 parity and raid 6 uses 6 data + 2 parity (according to my GUI) - witch should translate into 25% loss due to raid parity - RAID 6 should in theory have a larger overhead but my GUI shows the above mentioned overhead.Īll in all I have created approx. ![]() ![]() 7% it all depend on the type of raid used. 5% to system, spare drives ect., and additional 2% to copy drive (remote copy) - if not using remote copy I assume you don't need to calculate with this 2-3% copy space.īeside these approx. When formatted by 3Par it shows that my NL HD have a raw capacity of 78.624 GiB of storage.įrom this my system takes approx. In 3Par GUI FC+SSD capacity is calculated into 81.584.00 GiB usable space witch is the true RAW capacity of the disks (900 Gb disk holds 819 Gb formatted data).īelow Im only talking about the FC numbers excluding the SSD's. Simple calculated total raw FC+SSD capacity is 96*900+16*200 = 89.600 Gb We have a new 3par dual 7400 controller witch is equipped with 96 FC 900Gb 10K HDs + 16 SSD 200 Gb HDs (6 cages + controller cage) I’m not aware of how to calculate this, but Im able to provide you with real numbers from a running 3Par system with approx 80 Tb raw disk capacity, giving my aprox 54 Tb usable space.
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