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zhangyue
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Reviewed-by: Muller, Martin <martin.muller@t-systems.com> Co-authored-by: zhangyue <zhangyue164@huawei.com> Co-committed-by: zhangyue <zhangyue164@huawei.com>
18 lines
3.5 KiB
HTML
18 lines
3.5 KiB
HTML
<a name="sfs_01_0011"></a><a name="sfs_01_0011"></a>
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<h1 class="topictitle1">Restrictions and Limitations</h1>
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<div id="body1469764805161"><div class="section" id="sfs_01_0011__section9538163610317"><h4 class="sectiontitle">General</h4><ul id="sfs_01_0011__ul18764101154529"><li id="sfs_01_0011__li18414966154529">SFS supports the NFSv3 protocol only. The default export options are <strong id="sfs_01_0011__b842352706135910">rw</strong>, <strong id="sfs_01_0011__b842352706135914">no_root_squash</strong>, <strong id="sfs_01_0011__b842352706135923">no_all_squash</strong>, and <strong id="sfs_01_0011__b842352706135930">sync</strong>.</li><li id="sfs_01_0011__li152526134454">To obtain better performance, you are advised to use the operating systems listed in <a href="sfs_01_0014.html">Supported Operating Systems</a>, which have passed the compatibility test.</li><li id="sfs_01_0011__li197854319554">Currently, SFS does not support replication.</li><li id="sfs_01_0011__li230152195815">Currently, SFS does not support cross-region access.</li><li id="sfs_01_0011__li17559320103518">SFS Capacity-Oriented does not apply to file storage scenarios requiring low latency and high IOPS, such as database services, website building, and code storage.</li></ul>
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</div>
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<div class="section" id="sfs_01_0011__section9992175114314"><h4 class="sectiontitle">SFS Capacity-Oriented</h4><ul id="sfs_01_0011__ul628417420569"><li id="sfs_01_0011__li18568161752215">SFS Capacity-Oriented can be accessed only on the intranet and used only on the cloud.</li></ul>
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<ul id="sfs_01_0011__ul1190751720222"><li id="sfs_01_0011__li17907717192212">Currently, NFSv3 protocol is supported (NFSv4 is not supported).</li><li id="sfs_01_0011__li17908717112212">A maximum of 10,000 compute nodes can be mounted to and access a single file system at the same time.</li><li id="sfs_01_0011__li760312110239">The maximum capacity of a single file system is 2 PB, and that of a single file is 240 TB.</li><li id="sfs_01_0011__li7939101010100">Multi-VPC access is supported. You can add a maximum of 20 VPCs for one file system and create a maximum of 400 ACL rules for all added VPCs.</li></ul>
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<div class="section" id="sfs_01_0011__section1379914103219"><h4 class="sectiontitle">SFS Turbo</h4><ul id="sfs_01_0011__ul12454202111514"><li id="sfs_01_0011__li18218172231811">Only the NFSv3 protocol is supported (NFSv4 is not supported).</li><li id="sfs_01_0011__li36674591451">A maximum of 500 compute nodes can be mounted to and access a single file system at the same time.</li><li id="sfs_01_0011__li1191911396">The maximum capacity of a single file system is 32 TB, and the maximum capacity of a single file is 16 TB.</li><li id="sfs_01_0011__li1711124484111">Maximum number of files supported by a single file system = Capacity/16 KB. For example, the maximum number of files supported by a 500 GB file system is 32,768,000 (500 GB/16 KB = 500 x 1024 x 1024/16).</li><li id="sfs_01_0011__li0241194671010">By default, a single directory contains a maximum of 2 million files.</li><li id="sfs_01_0011__li02371832141118">The maximum full path is 1024 bytes, and the maximum file name length is 255 bytes.</li><li id="sfs_01_0011__li1777615249129">The maximum soft link length is 1024 bytes.</li><li id="sfs_01_0011__li17258742171413">The maximum number of hard links is 255.</li><li id="sfs_01_0011__li1762301931519">The maximum directory depth is 100 layers.</li></ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000001567316265.html">Introduction</a></div>
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