#blockstorage

Block Storage là phương thức lưu trữ dữ liệu theo từng khối riêng biệt, giúp tăng tốc độ truy xuất và dễ dàng mở rộng khi cần thiết. Đây là lựa chọn tối ưu cho các ứng dụng cần hiệu năng cao như cơ sở dữ liệu, máy ảo và hệ thống giao dịch.

Đọc chi tiết: Block Storage là gì?

Block storage in Cloud

Hyperdisk Advanced Performance Storage Pools

Hyperdisk Storage Pools with Advanced Capacity, which help you reduce the Total Cost of Ownership (TCO) of your block storage capacity, were made generally available earlier this year. With Hyperdisk Storage Pools with Advanced Performance, Google is introducing that same breakthrough to block storage performance today. Now that you can provision IOPS and throughput aggregately, which Hyperdisk Storage Pools will dynamically allocate as your applications read and write data, you can significantly simplify performance planning and management and greatly boost resource usage.

With the Google Cloud console, you can begin using Advanced Performance Storage Pools right now.

The difficulty lies in allocating an appropriate quantity of performance resources

Clients have reported difficulties in striking a balance between making the most of all of their block storage performance resources and guaranteeing that their workloads have the resources necessary to be successful. This problem stems from what is known as the “sum of peaks” problem. Customers will provision their block storage at the maximum performance they have seen to guarantee that their workloads are never performance starved; nevertheless, in the majority of cases, their disks consume much less than that performance. This indicates that the performance usage of your disks is consistently low.

Utilizing Advanced Performance Storage Pools, reduce TCO by 40–50%

To address this issue, Google created Advanced Performance for Hyperdisk Storage Pools. You may now achieve high performance utilization and successful workloads simultaneously with Advanced Performance Storage Pools. When you provision performance in aggregate in a Hyperdisk Storage Pool with Advanced Performance, the Storage Pool intelligently divides those resources among the disks in the Pool as required. All without altering the behavior of drives, allowing your applications to function normally. Without compromising application success or resource efficiency, you can now more easily plan for your performance requirements and reduce your total cost of ownership.

To show how Hyperdisk Storage Pools with Advanced Performance can reduce your total cost of ownership, let’s examine a few workloads. Consider two workloads: a database workload that needs 75K IOPS at peak (such as when quarterly reports are due) but only 35K at steady state, and an enterprise application suite that needs 25K IOPS at peak (such as when all users are signed in simultaneously) but only 10K at steady state.

Since these workloads’ steady state performance would be around half of their allocated performance, they would function at 40–45% performance utilization outside of a pool. But because a Hyperdisk Storage Pool with Advanced Performance’s dynamic resource allocation guarantees that these workloads operate at about 80% utilization, the customer can supply far lower performance resources and reduce their TCO from 40–55% without modifying their applications.WorkloadPerformance RequirementsGCP Storage PoolsAlternative Cloud ProviderPools TCO SavingsEnterprise applicationsPeak IOPS: 25KAvg IOPS: 10KPeak Tput: 400 MiB/sAvg Tput: 160 MiB/s$33K/mo.$74K/mo.55%Databases (e.g. SQL Server)Peak IOPS: 75KAvg IOPS: 35KPeak Tput:  1.2 GiB/sAvg Tput:  560 MiB/s$15K/Mo.$25K/Mo.40%Price:IOPs – $.0095Throughput – $.076$81.92 / TiBIncludes: 1 TiB capacity, 5K IOPS, 200 MiB/s

Plan ahead and simplify block storage performance

A major advancement in performance resource provisioning is Advanced Performance Storage Pools. Infrastructure managers have historically had to decide between risking application failure by optimizing operational efficiency or accepting poor utilization. This implies that they must take on significant managerial effort and actively oversee each volume’s success.

Block storage performance management is made easy with Hyperdisk Advanced Performance Storage Pools. An Advanced Performance Storage Pool’s disk IOPS and throughput are “thin-provisioned.” To put it another way, you can provision up to five times the IOPS and throughput in a pool to the disks in the pool while maintaining resource-neutral performance at the disk level.

This results in great efficiency (because you no longer need to actively manage the IOPS and Throughput allocated to each disk) and eases deployment planning (since you no longer need to guess precisely what performance demands each disk should have). All you have to do is build the disks you need, as performanta as possible, and allow the Advanced Performance Storage Pool to provide resources as needed.

Early adopters of Advanced Performance Storage Pools, like REWE, have recognized the benefits of the product.

Start now

The same process used to create Hyperdisk Storage Pools can also be used to start Hyperdisk Advanced Performance Storage Pools. Go to Compute Engine by logging into the Google Cloud dashboard and selecting Storage. Next, establish your Storage Pool, choose Advanced Performance as the volume type (Balanced or Throughput), and enter the entire capacity and performance that the pool will require. Starting with the creation of new Hyperdisk volumes, you may start using the pool’s capacity as well as the extra advantage of dynamically sharing performance across your resources.

We believe that Advanced Performance Storage Pools will significantly enhance your ability to manage and get the optimal performance of your applications. The regions and zones that will receive Hyperdisk Advanced Performance Storage Pools are now being served. Start using Advanced Performance Storage Pools right now by opening the Google Cloud dashboard and navigating through Google Cloud’s documentation to establish, use, and maintain your pools.

Hyperdisk Storage Pools, the first block storage solution from a hyperscale cloud provider to allow thin-provisioning, data reduction, and capacity pooling, will be generally available, as Google cloud revealed at Google Cloud Next 2024. By reducing your Total Cost of Ownership (TCO) by up to 30–50%, Hyperdisk Storage Pools enable you to streamline block storage management, modernise SAN-based operations, and increase efficiency. Storage Pools are available right now via the Google Cloud console. Let’s examine Hyperdisk Storage Pools’ operation and integration into your environment in this blog post.

Hyperdisk Storage Pools can store big amounts using Compute Engine. A Hyperdisk Storage Pool provides pre-purchased capacity, throughput, and IOPS to applications as needed. Create, manage, and use discs in pools with Hyperdisk Storage Pools for multiple workloads. Manage discs in bulk to save money and increase capacity and performance. By employing exactly the storage you need in Hyperdisk Storage Pools, you simplify capacity forecasts and decrease management by going from hundreds of discs to one pool.

Benefits of storage pools include:

Thin provisioning and data reduction enable Hyperdisk Storage Pools store data efficiently and achieve best-in-class TCO.

Hyperdisk Storage Pools take advantage of thin provisioning and data reduction to maximize resource utilization and minimize TCO.

Management overhead reduced Higher Flexibility – Hyperdisk Storage Pools allow workload owners to provide larger discs and only use what they need, eliminating capacity and performance forecasts and rescaling downtime.

Workloads use Hyperdisk volumes the same way with storage pools. No downtime or workload disruptions are needed.

Data on discs in a storage pool remain isolated as if they were not.

Use storage pools

Storage pools solve these issues:

Trouble predicting resource requirements when transitioning on-premise SAN workloads to Google Cloud.

Estimating application performance and capacity can take weeks and be error-prone, delaying a cloud migration or application rollout.

In Hyperdisk Storage Pools, you can overestimate the capacity needed to make discs and then only use the disc space you write data on.

Underuse of resources

Ensuring volume utilization is difficult and painful. Block storage is often underutilized because peak capacity and performance must be provided to avoid outages and slowdowns. However, few applications reach those levels.

Using Hyperdisk Storage Pools, you establish a pool to meet workload capacity needs. To keep utilization below 80%, the Hyperdisk Storage Pool automatically adds capacity.

Complex workload block storage management

Managing hundreds or thousands of disc volumes takes time and resources away from innovation.

When creating VM discs in a storage pool, you can choose a size bigger than expected workload. Workloads write to discs, reducing storage pool capacity. You only subtract the block storage you use from the storage pool capacity, not the disc creation amount. The disc size you choose limits capacity. Only change the disc size if this limit is reached.

If you build discs in the storage pool and your workload exceeds capacity planning over numerous discs, you can expand capacity. All discs in the storage pool can use the extra capacity.

Hyperdisk Storage Pools options

Features of storage pools include:

Allocating blocks as needed instead of all at once is capacity thin provisioning. This prevents low storage utilisation, where lots of disc space is assigned but not used.

Data reduction: Storage pools improve efficiency with various data reduction technologies. Data type strongly affects data reduction. Data compressed or encrypted before storage in a Hyperdisk Storage Pool won’t reduce.

To prevent failures caused by insufficient capacity, Hyperdisk Storage Pools automatically adds capacity when utilisation surpasses 80% of provisioned capacity.

Hyperdisk Storage Pool operation

A storage pool with the aggregate capacity and performance your workloads need is created, then discs are added. Connect the discs to your VMs. Create discs with a larger size than needed. This allows future growth without disc resizing.

Only the disc space your workloads require after data reduction is withdrawn from the Advanced capacity storage pool if the disc was generated there.

To increase disc capacity, increase the storage pool’s provided capacity. The discs’ disc space can then rise to the size you set when creating them. By generating discs in an Advanced capacity storage pool with a big initial size and allocating additional space, you consolidate disc storage administration and decrease costs.

Storage pool capacity is managed. Increase or decrease a storage pool’s provided capacity to change disc capacity. If the storage pool’s usage capacity or the aggregate capacity of all discs reaches 80% of its specified capacity, an advanced capacity storage pool automatically adds capacity. If auto-grow fails, you can manually add storage pool capacity up to 1 PiB.

If a storage pool achieves 100% utilization and has no free space, writes to all discs fail unless data or discs are deleted. Most commercial software treats full disc write errors like hardware failures.

To avoid out-of-space issues, actively maintain and monitor your storage pool. You should also know how your workload will react to a disc out of space issue in a storage pool.

Hyperdisk Storage Pool provisioning

You can configure a Hyperdisk Storage Pool with Standard or Advanced capacity.

Storage pools standard capacity

Standard capacity provisioning creates discs in the storage pool until all discs exceed the pool’s capacity. Standard capacity storage pool discs use capacity like non-storage pool discs.

Storage pools with high capacity

Advanced storage pools allow thin-provisioning and data reduction for capacity, allowing you to provision discs with more capacity than purchased. Advanced capacity storage pools use capacity based only on bytes written to discs after data reduction, so you can give end users and applications more capacity than you paid.

Advanced capacity lets you build discs in the storage pool that exceed its provisioned capacity by up to 500%. Data written determines storage pool capacity, not disc capacity. Advanced capacity storage pool discs use capacity differently from Standard capacity and non-storage pool discs.

You can fill discs in an Advanced capacity storage pool to their allotted size if the data written to all discs doesn’t exceed the capacity. The auto-grow feature adds capacity to the storage pool if utilization reaches 80% of provisioned capacity. If the storage pool is full, writes to all discs will fail until you delete data or discs to reduce its capacity. Since most software applications treat writes to full discs as hardware failures, it’s important to both:

Monitor your storage pool to minimise disc space shortages.

Know how your workload reacts if it does.

Remember that storage pools can’t see your file system. Deleted data is still in use until your OS marks it unused using DISCARD or TRIM. Most third-party OS images and all Google-provided OS images do this by default, but you should confirm this if you are not using one. Find out how to verify or configure this feature at Disable lazy initialization and enable DISCARD commands.

Hyperdisk Storage Pool Types

The discs you can generate in a Hyperdisk Storage Pool depend on its type.

Hyperdisk Throughput Storage Pool: You choose capacity and throughput while creating the storage pool. Created Hyperdisk Throughput discs in the storage pool use some allotted capacity and throughput.

Hyperdisk Balanced Storage Pool: You set capacity, throughput, and IOPS while constructing the storage pool. You employ some of the storage pool’s capacity and performance to make Hyperdisk Balanced discs with capacity and performance above baseline.

High-throughput storage pools

Storage Pools can manage Hyperdisk Throughput disc utilization.

Performance

Storage pooled discs perform the same as non-pooled discs.

Pricing

Capacity, throughput, and IOPS determine Hyperdisk Storage Pool pricing.

Standard capacity storage pools price capacity like discs. Standard capacity in a Hyperdisk Balanced Storage Pool costs the same as standalone capacity.

Thin provisioning and data reduction cost more, hence advanced capacity is more expensive. Despite this premium, thin-provisioning and data reduction can lower block storage costs by increasing efficiency and utilization.

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VCCL Block Storage Advantages

VCCL Block Storage reduces delay in IO for reliable and flexible execution.

Easy management

Easy to access and manage resource privileges.

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