SSD cache can improve the performance of random access by storing frequently accessed data on the SSD cache. SSD cache can be mounted on a volume or iSCSI LUN (Block-Level). The objective of enabling SSD cache is to increase the performance of random access to a small portion of data that is frequently accessed in…
DetailsOwing to a NAND “channel hang” condition, the Intel SSD D3-S4510 and Intel SSD D3-S4610 series drives in the 1.92TB and 3.84TB capacities may become unresponsive after around 1,700 hours of cumulative idle power-on time. Symptoms If you are using the SSDs stated above, your Synology NAS may have any of the following symptoms: Unexpected abortion of command sent from the Synology NAS…
Detailshttps://www.synology.com/th-th/dsm/Btrfs
Since DSM 6.1, the system is able to detect silent data corruption and repair the corrupted files in general cases with the file self-healing feature. The file self-healing feature is currently available for the shared folders located in a Btrfs volume which was created with one of the following RAID types: RAID 1 RAID 5 RAID 6…
DetailsWith a myriad of hard disk drive (HDD) classes and models available on the market, selecting the suitable HDDs for your Synology NAS/IP SAN (hereinafter referred to as Synology servers) may not be an easy task. This article explains some of the major differences among the various HDD classes, and offers suggestions on what to…
DetailsYou can move data from one volume to another if there are two or more volumes set up on your Synology NAS. This article provides 2 methods for moving data: 1. Move a Shared Folder to Another Volume 2. Copy or Move data via File Station 1. Move a Shared Folder to Another Volume You can move…
DetailsWhen there is a drive error, you can check whether it is the drive or drive slot that is malfunctioning by following the instructions provided in this article. If any of the following occurs, you can confirm that the drive is malfunctioning: The system notifies you of bad sectors on the drive. The result of…
DetailsYou can know the usage status of the internal hard drive by receiving messages sent by the system or on DSM desktop notifications. To set the system messages, please go to Main Menu > Control Panel > Notification to enable email, SMS, or push notification services. You will thereby receive messages informing the usage status of the internal hard drive of…
DetailsDue to the specification limits of the SATA controllers used in Synology DS415+, DS1515+, and DS1815+, the maximum transmission speed will vary depending on the drive bay. If you need to enable SSD cache on one of these models, please install the SSDs into Drive Bay 1 or Drive Bay 2, each with a transmission…
DetailsFor Synology NAS devices with 2 or more bays, the drive position is numbered from left to right or from top to bottom. To find corresponding drives physically, please refer to the numbering as illustrated below. 2-bay models: 4-bay models: 5-bay models: 8-bay models: 10-bay models: 12-bay models:
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