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Calculating the usable capacity of a NetApp filer is quite a complex task. Part of the problem is defining what is meant my "usable". If you look at it from a user perspective then you would want to store x GB of data and do not want to take into account things like SnapShots. From Administrators perspective you would need to take into consideration SnapShots and also maximum utilisation of the storage because it is a bad idea to run a filer with no free space. To further complicate things, I would really need to know what type of data you want to store on the filer to answer the questions. If will vary dramatically if you are storing file of application data and if you are using SnapShots. However below is how you would calculate the storage space for normal file data. 1. Obtain the formatted disk size for the disks in the filer, this can be done from FilerView, Operations manager or from the "sysconfig -r" command (see below). In the example below the system has 72GB 10K FC disks and this shows the formatted size (10th parameter) of 6,8000 MB (or 66.4GB). FILER1> sysconfig -r Spare disks RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- Spare disks for block or zoned checksum traditional volumes or aggregates spare 0a.16 0a 1 0 FC:A - FCAL 10000 68000/139264000 69536/142410400 (not zeroed) 2. You need to work out the number of usable disks you will have. This will be the total number of disks less parity and spare disks. For example if you have a shelf of 14 disks, you would loose 2 disks, 1 as the parity, 1 as the double parity disk (I assume you will be using RAID-DP and not RAID4) and you would loose 1 as a hot spare. You may have more than 1 hot spare but 1 is ok for 1 shelf. Therefore from a total of 14 disks 11 are usable. You may also have more parity disks than the two in the example. This will depend on the size and number of raid groups, the rule is that you will lose 2 parity disks for each raid group, lets keep it simple and say you have just one raid group. So at the moment we know that we will have 730.4GB (66.4*11). 3. Next we need to take into account the WAFL reserve and Aggregate SnapShot space. By default WAFL reserves 10% for its own work and by default new aggregates have a reserve of 5% (although you can increase or remove this altogether). So it we take our 703.4GB figure we will have 620.84GB left (730.4-(730.4*0.15)). 4. Although we have usable capacity of the aggregate we have not taken into account the volume SnapShot space. By default this is 20%, taking are last figure of 620.84GB we will have 496.67GB left (620.84-(620.84*0.2)). 5. So at this point we know we can store just under 0.5TB of data (or just less than half of the marketing size of a shelf of disks). However it would not be good practice to run a filer at 100% capacity as you will have performance issue not to mention administration issues. I would not recommend running a filer anymore than 90% at an absolute maximum and really 80% would be better. Considering that there may be some data growth, 70% would be better as a maximum utilisation figure. Taking this maximum utilisation figure you would be left with 347.67GB (496.67 - (496.67*0.3)). Hope this all makes sense, it would also be worth considering things like thin provisioning, quite a large amount of savings can be made by using thin provisioning. See www.secalc.com which will show an example of how much storage can be saved. Just make sure you have some sort of alerting software (such a NetApp's Operations Manager) so that you don't suddenly run out of space because you have given away more storage than you actually have.
What else can I help you with?
What is the usable energy called?
Usable energy is called kinetic energy, which is the energy possessed by an object due to its motion. It can be harnessed to perform work or activities.
When heat dissipates into the environment is it no longer usable?
When heat dissipates into the environment, it is not typically considered usable in the same way as other forms of energy like electricity. While it can be harnessed in some cases, it generally represents a loss of usable energy in a system due to the second law of thermodynamics.
What is the difference between usable energy and total energy?
Usable energy refers to the energy that can be effectively converted and utilized for various purposes, while total energy represents the sum of all energy present within a system, including both usable and unusable forms. Usable energy can be harnessed to perform work, whereas total energy includes potential energy that may not be readily available for use.
What are Examples of usable and unusable?
Examples of usable items include a smartphone, a desktop computer, and a bicycle. Examples of unusable items could be a broken lightbulb, a deflated basketball, or a rusted screwdriver.
What is usable energy?
Usable energy refers to energy that can be easily converted or transformed into a form that can be readily used to perform work or provide power. This can include electricity, mechanical energy, or heat energy that can be efficiently utilized in various applications. Ensuring energy is in a usable form is crucial for powering our homes, transportation, and industries.
What is NetApp's population?
The population of NetApp is 12,000.
When was NetApp created?
NetApp was created in 1992.
When was Team NetApp created?
Team NetApp was created in 2010.
Where might one go to access a netapp simulator?
You can access a netapp simulator from the support section of the NetApp website. Once on the page, you will be able to download the simulator from the Utility Toolchest.
What services and products are offered by NetApp Storage?
Some services and products offered by NetApp Storage include Data Storage Systems such as the FAS/V-Series and Flash Array Systems. You can get support for these items from the NetApp website.
Where is the Filer Public in Filer located?
The address of the Filer Public is: 219 Main St, Filer, 83328 0052
What services does NetApp offer?
NetApp helps people with cluttered online storage. NetApp helps to cluster data so that the user can find it easier. It also gives people back up recovery features so data is not lost.
What is the phone number of the Filer Public in Filer?
The phone number of the Filer Public is: 208-326-4143.
What is the definition of netapp?
NetApp is short for Network Appliance and it is a data management and storage company based out of Sunnyvale, California. The US government is one of the biggest users of its service.
What brand of dishwasher has the largest usable capacity?
GEs Profile is a large capacity dishwasher that you could wash stuff like 20 quart stockpots in.
Does a sports filer use more gas?
What is a sports filer? Please clarify.
When was Tom Filer born?
Tom Filer was born on 1956-12-01.
