The maximum capacity of a Cloud Parallel File Storage (CPFS) file system is the value that you specify for the Capacity of CPFS File System parameter when you create the CPFS file system. If the capacity of the CPFS file system is used up, data cannot be written to the CPFS file system. We recommend that you increase the capacity of a CPFS file system before the capacity of the CPFS system is used up. This prevents your business from being affected by the issue that data cannot be written to the CPFS file system. This topic describes how to scale up a CPFS file system.
Prerequisites
A file system is created. For more information, see Create a file system.
Usage notes
CPFS for Lingjun file system
Only CPFS for Lingjun file systems in the Running state can be scaled up.
A CPFS for Lingjun file system can be scaled up but cannot be scaled down. The scale-up step size of a CPFS for Lingjun file system is 10,240 GiB. You can manually increase the capacity of a CPFS for Lingjun file system to up to 1 PiB. You can create a CPFS for Lingjun file system of up to 5 PiB in size. To create such a CPFS for Lingjun file system, submit a ticket.
When the capacity usage of a file system reaches a high level, the performance of the file system may deteriorate due to a high degree of file fragmentation. We recommend that you scale up a file system before the capacity usage reaches 90%.
To achieve the best performance of a file system, CPFS may actively balance the data during scale-up. The balance operation may occupy some disk space and network bandwidth, resulting in a slight performance deterioration.
Scale up a CPFS for Lingjun file system
Log on to the NAS console.
In the left-side navigation pane, choose File System > File System List.
In the top navigation bar, select a region.
Find the CPFS for Lingjun file system that you want to manage, move the pointer over the
icon in the Actions column, and then click Upgrade. NoteA CPFS file system can be scaled up but cannot be scaled down. The scale-up step size of a CPFS for Lingjun file system is 10,240 GiB. You can manually increase the capacity of a CPFS for Lingjun file system to up to 1 PiB. You can create a CPFS for Lingjun file system of up to 5 PiB in size. To create such a CPFS for Lingjun file system, submit a ticket.
In the Configure Capacity section of the Upgrade panel, move the slider to adjust the capacity.
Select I have read and agree CPFS (Pay-As-You-Go) Terms of Service and click Buy Now. Then, complete the payment as prompted.
References
For more information about how to view the capacity usage of a CPFS file system, see View the capacity monitoring data of a CPFS file system.
If you want to monitor the capacity and performance of a CPFS file system in real time, you can configure alert rules for the metrics of the CPFS file system. For more information, see Configure a basic alert rule and Configure an advanced alert rule.