Qnap storage pool

Privacy Terms. Quick links. Post Reply. Can anyone comment on the suitability of Storage Pools for home use? Patrick M.

You do not have the required permissions to view the files attached to this post. The initial setup only offers to create volume. Not a storage pool first and then a volume. This is why I skipped disk setup and did it manually afterwards. If you want to use storage pools, you need to start from scratch and first add all disks to a storage pool and then create the volume on top of the pool. It is weird that the firmware, for a "first boot" setup, doesn't offer the Storage Pool option.

It is very frustrating that I need to rebuild due to the setup process picking the non-optimal option. Your TS uses Storage Pools, so you have no choice.

They are an improvement, so you actually should " want " them. AdrianW wrote: I'm just setting up my new TS - and when I click "Create Volume" it gives me the option of "Static Volume" with the description "This mode gives the best performance without advanced features such as thin provisioning and snapshot". AdrianW wrote: I can't see why I'd want thin provisioning and snapshot in preference to best performance.

I've gone ahead and created a single storage pool containing all 8 drives, and then created a thick volume in the pool. I'm using RAID 6. But, I'd really like to know what advantage this is giving me over the Static Volume? Especially as the Static Volume has the best performance. I am only ever planning on having a single Volume, because I only use this as a media server appliance. Is there any reason for me to setup a storage pool?

I imagine I would back everything up, create the pool, and then copy DataVol1 back. Since it seems I'd only have 1 storage pool and 1 volume, I'm not sure what the benefit would be I've read through many threads, but can't really figure out Contact schumaku.

You can do this with "static single volume" too. I don't know, however, if it's possible with legacy volumes.You can use QNAP flexible volume management to better manage your storage capacity. The storage pool aggregates hard drives into a bigger storage space, and with the ability to support multiple RAID groups, the storage pool can offer more redundant protection and reduce risk of data crash.

With thin provisioning, storage space can be used more efficiently, and users can dynamically add or expand the capacity on demand to deploy storage for intended applications.

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Select the enclosure and hard drives to add to the new storage pool, select a proper RAID type, and click "Next". Please note that all of the data on the selected drives will be erased.

Please note that if "Snapshot Space Reservation" is disabled, the system will automatically use unallocated space from the storage pool for snapshots. You will then need to monitor the space used to ensure that there is sufficient space for new snapshots. Click "Next". There are 3 options available: 1. Static Single Volume best performance 2. Thick Multiple Volume good performance and flexibility 3. Specify the volume capacity and the rest of the options and click "Next".

If you have any further questions about QNAP products or solutions, contact customer service through the Service Portal. The new storage pool will be created. Expand storage pool capacity online To expand the storage pool capacity, please refer to the two methods. Create a new RAID group 1. Confirm your settings in the summary page and click "Expand" to finish.

The s pool capacity will be expanded. Create a new volume 1. Bytes per Inode Max. Size of Volume Max. Confirm your settings in the summary page and click "Finish". A new volume will be created. Expand volume capacity online 1.

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Specify the new capacity and click "Apply". The volume's capacity will be expanded. Confirm your settings in the summary page and click "Next" to finish. Enter the new capacity and click "Apply" to finish. Thank you for your feedback. HelloWelcome! You can start using a variety of QNAP member services. Software Store Get licenses for advanced features from our Software Store.Please note which disks make up this Storage Pool so you can remove them later on.

In this case these are Disks 5, 6 and 7. Note : A storage pool which contains the System volume can not be detached. A warning message will pop up to confirm whether you would like to execute the action and reminding you how to recover the pool in another NAS. Press Yes. This will take a few moments and once the pool has been safely detached it will disappear from the list. Your NAS will beep to indicate that the disks have been removed. Once it has been restored you will get a message saying the operation has been successful.

You will need to restore your shared folder access permissions. If you have any further questions about QNAP products or solutions, contact customer service through the Service Portal. You will be prompted to confirm whether you would like to run the scan. Hit Apply to restore it. Thank you for your feedback. HelloWelcome! You can start using a variety of QNAP member services. Software Store Get licenses for advanced features from our Software Store.In this best practice we will provide recommendations on how to configure the QNAP storage for optimal performance depending on your work load.

The guide line below introduces specific configuration recommendations that enable good performance from a QNAP storage system. Match the appropriate drive type to the expected workload within your environment. The most common performance characteristics measured are sequential and random operations. Each disk in you storage system can provide a certain amount of IOPS based off of the rotational speed, average latency and average seek time.

What are Storage Pools, Thin and Thick Volumes, RAID and ISCSI LUNs?

Random access means you can get any part of the file in any order. So for example, you can read the middle part before the start. Sequential means you must first read the first part of the file, before reading second, then third etc. Random access involves a higher number of seek operations, which means random read and especially random write will deliver a lower rate of throughput and IOPS.

Example For mechanical disk-based systems, where each disk seek will take around 10ms. Sequentially writing data to that same disk takes about 30 ms per MB. So if you sequentially write MB of data to a disk, it will take around 3 seconds. Cache size impact, larger the better to create more opportunities for re-sortingbut practically limited by cost because write caches are far more expensive than back-end disk. Before deploying your storage, understand what kind of work load your storage will be expected to perform.

When trying to determine which type of RAID to use when building a storage solution, it usually depends on two things. Capacity and Performance. RAID 5: Works best for medium performance, general purpose and sequential work loads.

Normally RAID 5 will be use because it is a more economical choice, with only 1 drive being used for parity. For performance demanding applications, RAID 5 is not the best choice. Customer primary concern is getting highest possible storage performance and storage capacity is not the main concern. A customer has a graphic render farm with about 50 Nodes. Since both high performance and large storage capacity is require for the graphic render process, we can optimize the QNAP NAS storage the following way.

The storage pool aggregates hard drives into a bigger storage space, and with the ability to support multiple RAID groups, the storage pool can offer more redundant protection and reduce risk of data crash. Once a Storage Pool has been created, you can choose from three different methods to create your volume on top of the pool.

The type of volume you want to create depends on whether you want flexibility or performance. Thick Volume: Thick Volume offers a combination of space flexibility and performance, you can choose how much space to assign to a Thick Volume from the Storage Pool. Thin Volume does not actually use physical storage space during volume creation, rather physical space is only use during write allocation.

This means you can provision a Thin Volume size that is larger than your physical storage size. You can create multiple Thin volume within the same storage pool.The Storage Pools feature is designed to aggregate physical hard disk drives into a large storage space and to provide enhanced RAID protection for it. Users can create, remove and expand a new storage pool, set a threshold, manage RAID groups and create a new volume on this page.

Follow the steps below to create a new storage pool:. Follow the steps below to remove a storage pool:. Follow the steps below to expand a storage pool:.

Expanding storage pools by creating new RAID groups. Follow the steps below to create a RAID group for storage pool expansion:.

Expanding storage pools by replacing hard disk drives in a RAID array. With this function, RAID group capacity can be expanded by replacing hard disk drives in an array one by one.

Follow the steps below to expand a RAID group:.

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RAID group types. Refer to the table below for explanations on RAID types:. However, this setup does not provide any redundancy protection. So, in the event that a disk is corrupted or otherwise damaged, all data on that disk will be lost. A striping RAID group combines two or more disks into one large, logical disk.

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It offers the fastest disk access performance but no data redundancy protection in the event of disk failure or damage. The disk capacity is the sum of all disks. Disk striping is usually used to maximize disk capacity or accelerate the speed of disk access. Please note that the RAID 0 configuration is not recommended for storing sensitive data. Disk Mirroring protects your data by automatically mirroring the contents of one disk to the second disk in the mirrored pair.

It provides protection in the event of a single disk failure.

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The storage capacity is equal to the capacity of the smallest single disk, as the second disk drive is used to back up the first disk drive. The RAID 1 configuration is suitable for storing sensitive data on a corporate or personal level.

qnap storage pool

The RAID 5 configuration is ideal for organizations running databases and other transaction-based applications that require storage efficiency and data protection. A minimum of 3 hard disks are required to create a RAID 5 group. The total capacity of the RAID 5 group is equal to the size of the disk with the smallest capacity in the array times the number of hard disk — 1. It is recommended though not required that only hard drives of the same brand and capacity are used to establish the most efficient hard drive capacity.

In addition, if your system contains four disk drives, it is possible to use three drives to implement a RAID 5 data array with the fourth drive kept as a spare disk. In this configuration, the system will automatically use the spare disk to rebuild the array in the event of a physical disk failure. A RAID 5 configuration can survive one disk failure without losing any system functionality.

When a disk fails in RAID 5, the disk volume will operate in the "degraded mode". There is no more data protection at this stage, and all the data will be lost if the unit suffers a second disk failure.

A failed disk should be replaced immediately.

Storage Pools

Users can choose to install a new disk after turning off the server or hot-swap the new disk while the server is running. The status of the disk volume will change to "rebuilding" after installing a new disk. Your disk volume will return to a normal status once the volume rebuilding process is complete. Note: To install a new disk when the server is running, first be sure the disk volume is in the "degraded" mode. Or, wait to hear two long beeps after the disk crash and then insert the new disk in place of the failed disk.A storage pool is designed to aggregate physical hard disk drives into a large storage space and to provide enhanced RAID protection for it.

You can perform the following actions to manage storage pools:.

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Creating New Storage Pools. Follow these steps to create a new storage pool:.

qnap storage pool

Removing Storage Pools. Follow these steps to remove a storage pool:. Note: Before you remove a storage pool, be sure to remove all volumes and LUNs on that storage pool. Safely Detaching Storage Pools. Follow these steps to safely detach a storage pool:. Note: After a storage pool is reattached, the configurations of iSCSI LUNs mapped in the storage pool or Apps installed before the detachment will not be automatically recovered.

Expanding Storage Pools. Follow these steps to expand a storage pool:. For these configurations, it is necessary to create an additional RAID group in order to expand the storage pool. Expanding storage pools by creating new RAID groups.

Follow these steps to create a RAID group for storage pool expansion:. Expanding storage pools by replacing hard disk drives in a RAID array. With this function, RAID group capacity can be expanded by replacing hard disk drives in an array one by one. Follow these steps to expand a RAID group:. Setting a Threshold. The system will generate a warning message in system logs when the storage pool used size hits the threshold.

To set a threshold value for a storage pool, follow these steps:. Setting Snapshot Reservation. You can set snapshot reservation space to ensure enough space for saving snapshots.

qnap storage pool

Snapshot reservation is set as a percentage of total storage pool space and there are two scenarios:. To set snapshot reservation, follow these steps:. Creating New Volumes for Storage Pools.

To create a new volume for a storage pool, follow these steps:. Set the percentage of storage spool space that is reserved to store snapshots.

Please note that all data on the selected hard disk drive s will be erased.

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Click "OK" if you are certain about this. A new storage pool will be created. Double click a storage pool to be removed to bring up the Storage Pool Management page.A storage pool aggregates many physical disks into one large storage space.

Storage pools may contain more than one RAID group. Using a storage pool provides the following benefits:.

Multiple volumes can be created on a storage pool, enabling you to divide the storage space among different users and applications. Disks of different sizes and types can be mixed into one large storage space.

Disks from connected expansion units can be mixed with disks in the NAS to form a storage pool. Extra disks can be added while the storage pool is in use, increasing storage capacity without interrupting services. Qtier automatically moves frequently accessed hot data to the faster SSDs, and infrequently accessed cold data to the slower disks. Snapshots can only be used with storage pools. Snapshots record the state of the data on a volume or LUN at a specific point in time.

Data can then be restored to that time if it is accidentally modified or deleted. Using a storage pool provides the following benefits: Multiple volumes can be created on a storage pool, enabling you to divide the storage space among different users and applications.


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