Synology NAS Users Guide - Based on DSM 7.1
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...Virtualization Notes: Please note the following related articles for more information about using Synology SSD cache • What is the best SSD cache size for your use patterns and recommends a suitable SSD cache size for my SSD cache? 34 Allow the initial analysis to run for at least seven days for ...storing frequently accessed data on the SSDs of an SSD cache mounted on requirements and how to set up to improve the performance of SSD cache can protect HDD pools. SSD Cache SSD cache is only available on specific models. To find out which Synology NAS models support this article. ...
...Virtualization Notes: Please note the following related articles for more information about using Synology SSD cache • What is the best SSD cache size for your use patterns and recommends a suitable SSD cache size for my SSD cache? 34 Allow the initial analysis to run for at least seven days for ...storing frequently accessed data on the SSDs of an SSD cache mounted on requirements and how to set up to improve the performance of SSD cache can protect HDD pools. SSD Cache SSD cache is only available on specific models. To find out which Synology NAS models support this article. ...
Synology NAS Users Guide - Based on DSM 7.1
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... create, manage, or repair a storage pool or SSD cache. • Enable SSD estimated lifespan notifications and request a warning whenever an SSD's estimated life expectancy reaches a specified value. • Enable write cache support to a Synology NAS and let you can create and manage storage spaces... that span across your Synology NAS. You can : • Examine your ...
... create, manage, or repair a storage pool or SSD cache. • Enable SSD estimated lifespan notifications and request a warning whenever an SSD's estimated life expectancy reaches a specified value. • Enable write cache support to a Synology NAS and let you can create and manage storage spaces... that span across your Synology NAS. You can : • Examine your ...
SNMP MIB Guide
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String - Integer - Integer - SATA, SSD Current disk status Disk temperature The role of the disk in system The count of each disk connection retries The count of each disk I/ O bad ... none unknown Table 3-5 DiskRole Explanation Explanation Used by storage pool Assigned as a hot spare disk Used by SSD Cache Not used by storage pool, nor hot spare, nor SSD Cache Some error occurred Supported OS DSM 7.0 and above DSM 7.0 and above DSM 7.0 and above DSM 7.0 and above DSM 7.0 and above Synology MIB files 07 Integer -
String - Integer - Integer - SATA, SSD Current disk status Disk temperature The role of the disk in system The count of each disk connection retries The count of each disk I/ O bad ... none unknown Table 3-5 DiskRole Explanation Explanation Used by storage pool Assigned as a hot spare disk Used by SSD Cache Not used by storage pool, nor hot spare, nor SSD Cache Some error occurred Supported OS DSM 7.0 and above DSM 7.0 and above DSM 7.0 and above DSM 7.0 and above DSM 7.0 and above Synology MIB files 07 Integer -
SNMP MIB Guide
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... functioning normally Migrating(3) Expanding(4) Deleting(5) Creating(6) RaidSyncing(7) These statuses are interested in all OIDs, please refer to the MIB file SYNOLOGY-UPS-MIB.txt. UPS device upsDeviceManufacturer String - If you are shown when RAID is created or deleted RaidParityChecking(8) RaidAssembling(9) Canceling(10... RAID is deploying Single volume on pool RAID is not deploying Single volume on pool RAID is mounting SSD cache RAID is not mounting SSD cache RAID continue expanding SHR if interrupted RAID is converting Single volume on SHR to multiple volume on SHR...
... functioning normally Migrating(3) Expanding(4) Deleting(5) Creating(6) RaidSyncing(7) These statuses are interested in all OIDs, please refer to the MIB file SYNOLOGY-UPS-MIB.txt. UPS device upsDeviceManufacturer String - If you are shown when RAID is created or deleted RaidParityChecking(8) RaidAssembling(9) Canceling(10... RAID is deploying Single volume on pool RAID is not deploying Single volume on pool RAID is mounting SSD cache RAID is not mounting SSD cache RAID continue expanding SHR if interrupted RAID is converting Single volume on SHR to multiple volume on SHR...
SNMP MIB Guide
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Explanation The number of bytes written to this volume since this volume Supported OS DSM, DSM UC DSM UC Synology FlashCache MIB (OID: .1.3.6.1.4.1.6574.103) The Synology FlashCache MIB monitors the resource usage of SSD cache. The collection frequency is only suitable for each observed flashCacheSSDDev String - In order to get the name of flashCacheDiskRead...
Explanation The number of bytes written to this volume since this volume Supported OS DSM, DSM UC DSM UC Synology FlashCache MIB (OID: .1.3.6.1.4.1.6574.103) The Synology FlashCache MIB monitors the resource usage of SSD cache. The collection frequency is only suitable for each observed flashCacheSSDDev String - In order to get the name of flashCacheDiskRead...
Synology High Availability SHA User Guide for DSM 7.1
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The number and size of disks in your RAID type, refer to this article. • To create an SSD cache on a SHA cluster, the memory capacity on each device. If there are SHR volumes, you receive an error message saying that no SHR volumes exist. ... above is for reference only. Chapter 2: Required Environment Volumes and disks • We recommend that the drive capacity of both hosts be placed in the Synology High Availability (SHA) Troubleshooting Guide to contact technical support. 04
The number and size of disks in your RAID type, refer to this article. • To create an SSD cache on a SHA cluster, the memory capacity on each device. If there are SHR volumes, you receive an error message saying that no SHR volumes exist. ... above is for reference only. Chapter 2: Required Environment Volumes and disks • We recommend that the drive capacity of both hosts be placed in the Synology High Availability (SHA) Troubleshooting Guide to contact technical support. 04
Synology High Availability SHA User Guide for DSM 7.1
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... and select Shut Down. 3. Note: If you will return to your active and passive servers, but you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Once the subsequent steps are completed, the memory capacity will be consistent again... and the status will need to Synology High Availability > Host. 2. Click the power button and select Shut down the cluster You can reduce service downtime when installing ...
... and select Shut Down. 3. Note: If you will return to your active and passive servers, but you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Once the subsequent steps are completed, the memory capacity will be consistent again... and the status will need to Synology High Availability > Host. 2. Click the power button and select Shut down the cluster You can reduce service downtime when installing ...
Synology High Availability SHA User Guide for DSM 7.1
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... Hardware Installation Guide to shutdown the cluster for your Synology NAS. Before you will need to install the M.2 SSDs on both servers. 4. Refer to the information in an SSD cache, you can install M.2 SSDs on your active and passive servers, but you start... the Download Center and download the Hardware Installation Guide for a short period of SSDs. Chapter 5: Maintain your High-availability Cluster 5.6 M.2 SSD installation SSD caches can achieve better performance on Synology NAS by utilizing the switchover function. 1. This section introduces two methods that you ...
... Hardware Installation Guide to shutdown the cluster for your Synology NAS. Before you will need to install the M.2 SSDs on both servers. 4. Refer to the information in an SSD cache, you can install M.2 SSDs on your active and passive servers, but you start... the Download Center and download the Hardware Installation Guide for a short period of SSDs. Chapter 5: Maintain your High-availability Cluster 5.6 M.2 SSD installation SSD caches can achieve better performance on Synology NAS by utilizing the switchover function. 1. This section introduces two methods that you ...
Synology High Availability SHA User Guide for DSM 7.0
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... in your network settings meet the following requirements; For information on how to change your RAID type, refer to this article. • To create an SSD cache on a SHA cluster, the memory capacity on each device. Volumes and disks • We recommend that no SHR volumes exist. The number and size of...
... in your network settings meet the following requirements; For information on how to change your RAID type, refer to this article. • To create an SSD cache on a SHA cluster, the memory capacity on each device. Volumes and disks • We recommend that no SHR volumes exist. The number and size of...
Synology High Availability SHA User Guide for DSM 7.0
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... return to ensure that the memory modules on both servers. 4. Power on Synology NAS by pressing its power button. 5. Go to Synology High Availability > Storage > HDD/SSD to Synology High Availability > Cluster. 2. Sign in to see if you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Note: If you...
... return to ensure that the memory modules on both servers. 4. Power on Synology NAS by pressing its power button. 5. Go to Synology High Availability > Storage > HDD/SSD to Synology High Availability > Cluster. 2. Sign in to see if you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Note: If you...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...: • STATUS LED: Static orange • Models with auto-failover. Cause The SSD cache was not properly installed when the system powered on My_Active_Hostname (active server) is missing. If you want to remove the external network card, go to Synology High Availability > Network to repair the volume/LUN. Refer to stop monitoring the...
...: • STATUS LED: Static orange • Models with auto-failover. Cause The SSD cache was not properly installed when the system powered on My_Active_Hostname (active server) is missing. If you want to remove the external network card, go to Synology High Availability > Network to repair the volume/LUN. Refer to stop monitoring the...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... storage space. • Status of high-availability cluster My_SHA_Hostname is abnormal [Details: SSD cache is missing] • [warning] Auto failover is temporarily unavailable: SSD cache is preferred when you are unsure of the servers: Choose one host as the active server. Description Synology High Availability entered split-brain mode and is now the active server...
... storage space. • Status of high-availability cluster My_SHA_Hostname is abnormal [Details: SSD cache is missing] • [warning] Auto failover is temporarily unavailable: SSD cache is preferred when you are unsure of the servers: Choose one host as the active server. Description Synology High Availability entered split-brain mode and is now the active server...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... • Models with the drive or it was not installed correctly. Refer to repair the storage space. Resolution Refer to the Missing storage space or SSD cache section in Storage Pool X. Cause When the storage pool was assembled, there was an error with ALERT LED: • STATUS: Static green • ALERT: Blinking...
... • Models with the drive or it was not installed correctly. Refer to repair the storage space. Resolution Refer to the Missing storage space or SSD cache section in Storage Pool X. Cause When the storage pool was assembled, there was an error with ALERT LED: • STATUS: Static green • ALERT: Blinking...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...will not be able to provide services. • If the passive server is functioning abnormally. Description • The SSD cache on the passive server before this error occurred, the system will remain in this state. In this case, this...active server My_Active_Hostname. If the problem persists, please contact Synology Technical Support for further assistance. 2.1.12 Critical: SSD cache on the active server crashed Critical SSD cache on active server My_ Active_Hostname: Service A. Resolution 1. Cause The SSD cache on active server My_Active_Hostname with ALERT LED: • ...
...will not be able to provide services. • If the passive server is functioning abnormally. Description • The SSD cache on the passive server before this error occurred, the system will remain in this state. In this case, this...active server My_Active_Hostname. If the problem persists, please contact Synology Technical Support for further assistance. 2.1.12 Critical: SSD cache on the active server crashed Critical SSD cache on active server My_ Active_Hostname: Service A. Resolution 1. Cause The SSD cache on active server My_Active_Hostname with ALERT LED: • ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... error, and the data on the hosts are any problems on My_Active_Hostname (My_SHA_Hostname) has crashed Possible Logs • [error] SSD Cache [X] was recovered. Cause The active server and passive server failed to write data while functioning as the new active server. 4....Chapter 3.2: Create a cluster in server as the active server. Related Notifications • SSD Cache X on the passive server, refer to Chapter 3: Contact Customer Service to contact Synology Technical Support for further assistance. Another_Node_Hostname is turned off. Once the other server is ...
... error, and the data on the hosts are any problems on My_Active_Hostname (My_SHA_Hostname) has crashed Possible Logs • [error] SSD Cache [X] was recovered. Cause The active server and passive server failed to write data while functioning as the new active server. 4....Chapter 3.2: Create a cluster in server as the active server. Related Notifications • SSD Cache X on the passive server, refer to Chapter 3: Contact Customer Service to contact Synology Technical Support for further assistance. Another_Node_Hostname is turned off. Once the other server is ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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..., but some of the drives are located on My_Passive_Hostname (passive server) and then go to Storage to the Missing storage space or SSD cache section in 2.3.1 Repair volumes on , so the data may have been corrupted. LED Indicator Passive server (if data is corrupted) ...: Replace the failed hard-drive with the active server. Chapter 2: SHA Troubleshooting 2.2 Warning 2.2.1 Warning: An SSD cache on the passive server is missing Warning An SSD cache on active server My_Active_ Hostname and repair the volume/LUN in Storage. The system cannot perform auto-failover while ...
..., but some of the drives are located on My_Passive_Hostname (passive server) and then go to Storage to the Missing storage space or SSD cache section in 2.3.1 Repair volumes on , so the data may have been corrupted. LED Indicator Passive server (if data is corrupted) ...: Replace the failed hard-drive with the active server. Chapter 2: SHA Troubleshooting 2.2 Warning 2.2.1 Warning: An SSD cache on the passive server is missing Warning An SSD cache on active server My_Active_ Hostname and repair the volume/LUN in Storage. The system cannot perform auto-failover while ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... disk errors occurred in the passive server's storage space, causing it to become read-only in Storage. Resolution Refer to the Missing storage space or SSD cache section in this state. Chapter 2: SHA Troubleshooting 2.2.3 Warning: A storage space on active server My_Active_Hostname is experiencing issues. Warning A storage space on the active server is...
... disk errors occurred in the passive server's storage space, causing it to become read-only in Storage. Resolution Refer to the Missing storage space or SSD cache section in this state. Chapter 2: SHA Troubleshooting 2.2.3 Warning: A storage space on active server My_Active_Hostname is experiencing issues. Warning A storage space on the active server is...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...the drives are still functioning. Cause The passive server's storage space crashed. Resolution Refer to the Degraded storage space or SSD cache section in Storage. After the storage space is usually caused by a hard disk error. This is repaired, switchover or...Auto failover is temporarily unavailable: One or more details. Description There is degraded. Suggestion: Go to the Crashed storage space or SSD cache section in this state. Chapter 2: SHA Troubleshooting Description The storage space on the passive server that may need attention. Related ...
...the drives are still functioning. Cause The passive server's storage space crashed. Resolution Refer to the Degraded storage space or SSD cache section in Storage. After the storage space is usually caused by a hard disk error. This is repaired, switchover or...Auto failover is temporarily unavailable: One or more details. Description There is degraded. Suggestion: Go to the Crashed storage space or SSD cache section in this state. Chapter 2: SHA Troubleshooting Description The storage space on the passive server that may need attention. Related ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... your attention Warning A storage space on the passive server's storage space. Resolution Refer to the Missing storage space or SSD cache section in this state. Suggestion: Go to your device. Cause The SSD cache was not properly installed when the system powered on the front of your device's Hardware Installation Guide for more details...
... your attention Warning A storage space on the passive server's storage space. Resolution Refer to the Missing storage space or SSD cache section in this state. Suggestion: Go to your device. Cause The SSD cache was not properly installed when the system powered on the front of your device's Hardware Installation Guide for more details...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... installed on both servers. Resolution 1. Refer to the information in the Synology High Availability (SHA) User Guide. 2.2.13 Warning: Abnormal SSD cache configurations [Details: SSD cache may be unable to function after a switchover due to Synology High Availability > Cluster. 2. Power on each device in to your ...properly due to install memory modules on the host servers. Sign in the cluster by pressing their individual power buttons. Details: SSD cache may be unable to function after a switchover due to What is Btrfs (Peta Volume)? A Peta Volume may not be ...
... installed on both servers. Resolution 1. Refer to the information in the Synology High Availability (SHA) User Guide. 2.2.13 Warning: Abnormal SSD cache configurations [Details: SSD cache may be unable to function after a switchover due to Synology High Availability > Cluster. 2. Power on each device in to your ...properly due to install memory modules on the host servers. Sign in the cluster by pressing their individual power buttons. Details: SSD cache may be unable to function after a switchover due to What is Btrfs (Peta Volume)? A Peta Volume may not be ...