Scalable File Service
FAQs
Issue |
01 |
Date |
2019-05-30 |
HUAWEI TECHNOLOGIES CO., LTD.
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Issue 01 (2019-05-30) |
Copyright © Huawei Technologies Co., Ltd. |
i |
Scalable File Service |
|
FAQs |
Contents |
Contents
1 Concepts.................................................................................................................................... |
1 |
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1.1 |
What Is SFS?............................................................................................................................................................................. |
1 |
1.2 |
What Is SFS Turbo?................................................................................................................................................................. |
1 |
1.3 |
What Are the ff nc Between SFS, OBS, and EVS?........................................................................................... |
2 |
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............................................................................................................................ |
4 |
2.1 |
What Is the Maximum Size of a File That Can Be Stored in a File System?...................................................... |
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2.2 |
What Access Protocols Are Supported by SFS?............................................................................................................. |
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2.3 |
How Many File Systems Can Be Created by Each Account?.................................................................................... |
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2.4 |
How Many ECSs Can a File System Be Mounted To?................................................................................................. |
4 |
3 Restrictions................................................................................................................................ |
5 |
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3.1 |
Can the Capacity of a File System Be Expanded?........................................................................................................ |
5 |
3.2 |
Can Data in a File System Be Migrated Across Regions?.......................................................................................... |
5 |
3.3 |
Can a File System Be Mounted to Multiple Accounts?.............................................................................................. |
5 |
4 Networks................................................................................................................................... |
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4.1 |
Can a File System Be Accessed Across VPCs?................................................................................................................ |
6 |
4.2 |
Does SFS Support Cross-Region Mounting?.................................................................................................................. |
6 |
4.3 |
Does the Security Group of a VPC ff c SFS?............................................................................................................. |
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4.4 |
What Can I Do If the Data of the File System That Is Mounted to Two Servers Is Not Synchronized? |
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5 Billing......................................................................................................................................... |
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5.1 |
How Do I Purchase SFS?....................................................................................................................................................... |
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5.2 |
How Do I Renew the Service?.......................................................................................................................................... |
11 |
5.3 |
How Do I Check Whether the Subscriber Is in Arrears?.......................................................................................... |
11 |
5.4 |
Can I Purchase SFS Capacity-Oriented Resource Packages When I Still Have Valid Ones in Use?......... |
12 |
5.5 |
How Do I Check the Usage of an SFS Capacity-Oriented Resource Package?................................................ |
12 |
5.6 |
Do SFS Capacity-Oriented and SFS Turbo Share One Resource Package?....................................................... |
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6 Others...................................................................................................................................... |
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6.1 |
How Do I Access a File System from an ECS?............................................................................................................ |
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6.2 |
How Do I Check Whether a File System on an ECS Running Linux Is Available?.......................................... |
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6.3 |
What Resources Does SFS Occupy?................................................................................................................................ |
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6.4 |
Why Is the Capacity Displayed as 10P After the File System Is Mounted?...................................................... |
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Issue 01 (2019-05-30) |
Copyright © Huawei Technologies Co., Ltd. |
ii |
Scalable File Service |
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FAQs |
Contents |
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6.5 |
How Can I Migrate Data Between SFS and OBS?..................................................................................................... |
16 |
6.6 |
Can a File System Be Accessed Across Multiple AZs?.............................................................................................. |
17 |
6.7 |
Can I Upgrade an SFS Capacity-Oriented File System to an SFS Turbo File System?.................................. |
17 |
6.8 |
How Can I Migrate Data Between SFS and EVS?...................................................................................................... |
17 |
Issue 01 (2019-05-30) |
Copyright © Huawei Technologies Co., Ltd. |
iii |
Scalable File Service |
|
FAQs |
1 Concepts |
1Concepts
Scalable File Service (SFS) provides high-performance |
storage that can be |
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expanded and shrunk on demand. With SFS, you can enjoy shared |
access |
spanning multiple ECSs. SFS supports the Network File System (NFS) protocol. You can seamlessly integrate existing applications and tools with the service.
SFS provides an easy-to-use graphical user interface (GUI). On the GUI, users can
create and c n |
systems, saving ff in deploying, resizing, and |
optimizing |
systems. |
In addition, SFS features high reliability and availability. It can be elastically expanded, and it performs better as its capacity grows. The service is suitable for a
wide range of scenarios, including media processing, |
sharing, content |
management and web services, big data, and analytic applications. |
SFS Turbo enables high-performance storage that can be expanded and shrunk on demand. It provides sharing services for Elastic Cloud Servers (ECSs). SFS Turbo supports the Network File System (NFS) protocol (only NFSv3). You can seamlessly integrate existing applications and tools with the service.
SFS Turbo provides an easy-to-use graphical user interface (GUI). On the GUI,
users can create and c n |
systems, saving ff |
in deploying, resizing, |
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and optimizing |
systems. |
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In addition, SFS Turbo features high reliability and availability. It can be elastically expanded, and it performs better as its capacity grows. The service is suitable for a
wide range of scenarios, including enterprise ffic |
high-performance websites, |
and software development. For details about the |
system types, see File |
System Types. |
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Issue 01 (2019-05-30) |
Copyright © Huawei Technologies Co., Ltd. |
1 |
Scalable File Service |
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FAQs |
1 Concepts |
1.3 What Are the |
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Between SFS, OBS, and |
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EVS? |
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Table 1-1 shows the comparison between SFS, Object Storage Service (OBS), and |
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Elastic Volume Service (EVS). |
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Table 1-1 Comparison between SFS, OBS, and EVS |
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Dimensio |
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SFS |
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OBS |
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EVS |
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Concept |
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SFS provides on- |
OBS provides |
EVS provides scalable |
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demand high- |
massive, secure, |
block storage that |
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performance |
reliable, and c |
features high |
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storage, which can |
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data |
reliability, high |
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be shared by |
storage capabilities |
performance, and rich |
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multiple ECSs. SFS |
for users to store |
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for ECSs |
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is similar to a |
data of any type |
to meet service |
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remote directory |
and size. |
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requirements in |
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for Windows or |
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scenarios. An |
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Linux OSs. |
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EVS disk is similar to a |
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hard disk on a PC. |
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Data |
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Stores |
and |
Stores objects. Files |
Stores binary data and |
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storage |
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sorts and displays |
can be directly |
cannot directly store |
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logic |
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data in the |
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stored. The |
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To store |
you |
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hierarchy of |
automatically |
need to format the |
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and folders. |
generate |
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system |
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corresponding |
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system metadata. |
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Users can also |
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customize the |
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metadata of |
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Access |
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Attach |
systems |
You can access OBS |
An EVS disk can only |
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method |
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to ECSs. You need |
through the Internet |
be used by mounting |
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to specify a |
or Direct Connect. |
to an ECS or BMS and |
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network address for |
You need to specify |
cannot be directly |
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access or change |
the bucket address |
accessed by OS |
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the network |
for access. The |
applications. It must |
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address to a local |
transmission |
be formatted into a |
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directory for access. |
protocols such as |
system for access. |
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The NFS and CIFS |
HTTP and HTTPS |
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protocols are used. |
are used. |
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Issue 01 (2019-05-30) |
Copyright © Huawei Technologies Co., Ltd. |
2 |
Scalable File Service |
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FAQs |
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1 Concepts |
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Dimensio |
SFS |
OBS |
EVS |
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Applicatio |
High-performance |
Big data analysis, |
HPC, enterprise core |
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computing (HPC), |
static website |
cluster applications, |
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Scenario |
media processing, |
hosting, online video |
enterprise application |
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sharing, content |
on demand (VoD), |
systems, and |
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management, and |
gene sequencing, |
development and |
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web services |
and intelligent video |
testing |
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NOTE |
surveillance |
NOTE |
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HPC: High |
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HPC: High-speed and |
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bandwidth is |
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high-IOPS storage is |
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required for shared |
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required, such as |
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storage, such as |
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industrial design and |
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gene sequencing |
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energy exploration. |
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and image |
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rendering. |
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Capacity |
PB-scale |
EB-scale |
TB-scale |
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Latency |
3–10 ms |
10 ms |
1–2 ms |
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IOPS/TPS |
10,000 for a single |
Quadrillion |
33,000 for a single |
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system |
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disk |
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Bandwidt |
GB/s |
TB/s |
MB/s |
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Data |
Yes |
Yes |
Yes |
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sharing |
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supported |
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Remote |
Yes |
Yes |
No |
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access |
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supported |
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Online |
Yes |
No |
Yes |
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editing |
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supported |
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Used |
Yes |
Yes |
No |
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independe |
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ntly |
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Issue 01 (2019-05-30) |
Copyright © Huawei Technologies Co., Ltd. |
3 |