Synology NAS Users Guide - Based on DSM 7.1
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... Notes: Please note the following related articles for more information: • Important considerations when creating SSD cache • Frequently asked questions about SSD Cache Advisor, refer to storage pools of the same drive type. For more information about using Synology SSD cache • What is the minimum recommended size for your current data use case, we strongly...
... Notes: Please note the following related articles for more information: • Important considerations when creating SSD cache • Frequently asked questions about SSD Cache Advisor, refer to storage pools of the same drive type. For more information about using Synology SSD cache • What is the minimum recommended size for your current data use case, we strongly...
Synology NAS Users Guide - Based on DSM 7.1
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... to 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 increase your storage space. Further reading • Refer to scale up your main Synology NAS and connected expansion units. You can : •...
... to 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 increase your storage space. Further reading • Refer to scale up your main Synology NAS and connected expansion units. You can : •...
SNMP MIB Guide
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... .9 diskBadSector .10 diskIdentifyFail .11 diskRemainLife .12 diskName .13 diskHealthStatus Table 3-3 Disk MIB Type Status Type Integer - 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...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
... .9 diskBadSector .10 diskIdentifyFail .11 diskRemainLife .12 diskName .13 diskHealthStatus Table 3-3 Disk MIB Type Status Type Integer - 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...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
SNMP MIB Guide
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...Synology UPS MIB (OID: .1.3.6.1.4.1.6574.4) The Synology UPS MIB provides the ability to monitor the status of disk(s) occurs RAID has crashed and is now read-only RAID is DataScrubbing 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... (19) RaidMigrateSHR1ToSHR2 (20) RaidUnknownStatus (21) Degrade is shown when a tolerable failure of a UPS device connected to the Synology servers. model UPS device upsDeviceSerial String - device (percent) Battery charge Supported OS DSM, DSM UC DSM, DSM UC DSM...
...Synology UPS MIB (OID: .1.3.6.1.4.1.6574.4) The Synology UPS MIB provides the ability to monitor the status of disk(s) occurs RAID has crashed and is now read-only RAID is DataScrubbing 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... (19) RaidMigrateSHR1ToSHR2 (20) RaidUnknownStatus (21) Degrade is shown when a tolerable failure of a UPS device connected to the Synology servers. model UPS device upsDeviceSerial String - device (percent) Battery charge Supported OS DSM, DSM UC DSM, DSM UC DSM...
SNMP MIB Guide
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...flashcache we are counting/checking. The collection frequency is only suitable for the model which support SSD cache. reads on flashcache The number of SSD cache. OID .13 Name spaceIONWrittenX Type Status Type Counter64 - Explanation The number of bytes written ...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 flashCacheDiskWrite Counter64 - device The SSD device name on volume flashCacheTotalWrite Counter64 - Note: The MIB is...
...flashcache we are counting/checking. The collection frequency is only suitable for the model which support SSD cache. reads on flashcache The number of SSD cache. OID .13 Name spaceIONWrittenX Type Status Type Counter64 - Explanation The number of bytes written ...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 flashCacheDiskWrite Counter64 - device The SSD device name on volume flashCacheTotalWrite Counter64 - Note: The MIB is...
Synology High Availability SHA User Guide for DSM 7.1
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... your RAID type, refer to this article. • To create an SSD cache on a SHA cluster, the memory capacity on each host must be placed in the exact same slots on the active server, refer to Chapter 3: Contact Customer Service in the Synology High Availability (SHA) Troubleshooting Guide to create a Peta Volume on...
... your RAID type, refer to this article. • To create an SSD cache on a SHA cluster, the memory capacity on each host must be placed in the exact same slots on the active server, refer to Chapter 3: Contact Customer Service in the Synology High Availability (SHA) Troubleshooting Guide to create a Peta Volume on...
Synology High Availability SHA User Guide for DSM 7.1
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...: If you will return to normal. This is a normal phenomenon. Sign in to your high-availability cluster and go to Synology High Availability > Host. 2. Click the power button and select Shut down the cluster You can reduce service downtime when installing ... 2: SHA Troubleshooting in to your active and passive servers, but you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Sign in the Synology High Availability (SHA) Troubleshooting Guide. 46 Chapter 5: Maintain your High-availability Cluster Method ...
...: If you will return to normal. This is a normal phenomenon. Sign in to your high-availability cluster and go to Synology High Availability > Host. 2. Click the power button and select Shut down the cluster You can reduce service downtime when installing ... 2: SHA Troubleshooting in to your active and passive servers, but you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Sign in the Synology High Availability (SHA) Troubleshooting Guide. 46 Chapter 5: Maintain your High-availability Cluster Method ...
Synology High Availability SHA User Guide for DSM 7.1
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... power buttons. 5. Go to Storage Manager > Storage > HDD/SSD to your Synology NAS. Refer to the information in to confirm that the M.2 SSDs have been successfully installed on both servers. 4. Chapter 5: Maintain your High-availability Cluster 5.6 M.2 SSD installation SSD caches can also reduce the service downtime when installing M.2 SSDs by utilizing the switchover function. 1. By storing frequently...
... power buttons. 5. Go to Storage Manager > Storage > HDD/SSD to your Synology NAS. Refer to the information in to confirm that the M.2 SSDs have been successfully installed on both servers. 4. Chapter 5: Maintain your High-availability Cluster 5.6 M.2 SSD installation SSD caches can also reduce the service downtime when installing M.2 SSDs by utilizing the switchover function. 1. By storing frequently...
Synology High Availability SHA User Guide for DSM 7.0
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... hosts must be identical. otherwise, you must have the same number of drives. Go to Storage Manager > Volume to this article. • To create an SSD cache on a SHA cluster, the memory capacity on the active server once the high-availability cluster is for the Cluster connection. • Both hosts must not...
... hosts must be identical. otherwise, you must have the same number of drives. Go to Storage Manager > Volume to this article. • To create an SSD cache on a SHA cluster, the memory capacity on the active server once the high-availability cluster is for the Cluster connection. • Both hosts must not...
Synology High Availability SHA User Guide for DSM 7.0
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... cluster for your active and passive servers, but you can achieve better performance on both servers. Method 1: Shut down cluster. 3. Go to Synology High Availability > Host to Synology High Availability > Cluster. 2. Make sure you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Sign in identical slots on...
... cluster for your active and passive servers, but you can achieve better performance on both servers. Method 1: Shut down cluster. 3. Go to Synology High Availability > Host to Synology High Availability > Cluster. 2. Make sure you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion process. Sign in identical slots on...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...orange • Models with auto-failover. However, the external network interface card has been removed, causing the system to contact Synology Technical Support for more details. If you want to remove the external network card, go to Storage to repair the volume/LUN...'s Hardware Installation Guide for further assistance. 2.1.2 Critical: An SSD cache on the active server is missing Critical An SSD cache on both servers. 3. Cause The network interface [LAN X] is lost. Description • An SSD cache is being monitored by the high-availability cluster. Suggestion: Check...
...orange • Models with auto-failover. However, the external network interface card has been removed, causing the system to contact Synology Technical Support for more details. If you want to remove the external network card, go to Storage to repair the volume/LUN...'s Hardware Installation Guide for further assistance. 2.1.2 Critical: An SSD cache on the active server is missing Critical An SSD cache on both servers. 3. Cause The network interface [LAN X] is lost. Description • An SSD cache is being monitored by the high-availability cluster. Suggestion: Check...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...occurred Critical A split-brain error occurred. Chapter 2: SHA Troubleshooting Resolution Related Notifications Possible Logs Refer to the Missing storage space or SSD cache section in 2.3.2 Repair volumes on the active server to repair the storage space. • Status of the hosts as the ...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 suspended to fix the issue. You can use the Split-brain page in Synology High Availability to compare the data differences...
...occurred Critical A split-brain error occurred. Chapter 2: SHA Troubleshooting Resolution Related Notifications Possible Logs Refer to the Missing storage space or SSD cache section in 2.3.2 Repair volumes on the active server to repair the storage space. • Status of the hosts as the ...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 suspended to fix the issue. You can use the Split-brain page in Synology High Availability to compare the data differences...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... was not installed correctly. Refer to your device. Please go to Storage to reassemble the volume/LUN. Resolution Refer to the Missing storage space or SSD cache section in Storage Pool X. Related Notifications • Status of drives. / Storage Pool X has been lost all installed properly on My_Active_Hostname (active server) is missing. Suggestion...
... was not installed correctly. Refer to your device. Please go to Storage to reassemble the volume/LUN. Resolution Refer to the Missing storage space or SSD cache section in Storage Pool X. Related Notifications • Status of drives. / Storage Pool X has been lost all installed properly on My_Active_Hostname (active server) is missing. Suggestion...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... server will remain in this state. Suggestion: Replace the failed SSD on the active server is corrupted due to restart the active server. If the problem persists, please contact Synology Technical Support for the passive server to perform auto-failover and will...Static orange • Models with a new one of your device's Hardware Installation Guide for further assistance. 2.1.12 Critical: SSD cache on the active server crashed Critical SSD cache on the front of the monitored services. • While in certain services. Resolution 1. If the status remains after ...
... server will remain in this state. Suggestion: Replace the failed SSD on the active server is corrupted due to restart the active server. If the problem persists, please contact Synology Technical Support for the passive server to perform auto-failover and will...Static orange • Models with a new one of your device's Hardware Installation Guide for further assistance. 2.1.12 Critical: SSD cache on the active server crashed Critical SSD cache on the front of the monitored services. • While in certain services. Resolution 1. If the status remains after ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... passive server first so it will no longer provide services and it can only select the currently logged-in the Synology High Availability (SHA) User Guide. 14 There are functioning properly. 3. Make sure that both servers are two possible...the cluster to keep. Related Notifications • SSD Cache X on My_Active_Hostname (My_SHA_Hostname) has crashed Possible Logs • [error] SSD Cache [X] was recovered. Another_Node_Hostname is powered-on how to Add a passive server to an existing cluster, refer to Synology High Availability > Cluster and click Manage > ...
... passive server first so it will no longer provide services and it can only select the currently logged-in the Synology High Availability (SHA) User Guide. 14 There are functioning properly. 3. Make sure that both servers are two possible...the cluster to keep. Related Notifications • SSD Cache X on My_Active_Hostname (My_SHA_Hostname) has crashed Possible Logs • [error] SSD Cache [X] was recovered. Another_Node_Hostname is powered-on how to Add a passive server to an existing cluster, refer to Synology High Availability > Cluster and click Manage > ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... with the active server. Resolution Refer to your device. Go to the Missing storage space or SSD cache section in Storage. Description Cache space on the passive server is still accessible and its services are running normally. Suggestion: Make sure...data is missing. Cause The active server's storage space downgraded. 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 My_Passive_Hostname (passive server) is corrupted) • Models without ALERT LED: • STATUS: Static orange ...
... with the active server. Resolution Refer to your device. Go to the Missing storage space or SSD cache section in Storage. Description Cache space on the passive server is still accessible and its services are running normally. Suggestion: Make sure...data is missing. Cause The active server's storage space downgraded. 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 My_Passive_Hostname (passive server) is corrupted) • Models without ALERT LED: • STATUS: Static orange ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... space on the passive server became read-only Warning A storage space on the front of your device. Resolution Go to the Missing storage space or SSD cache section in this state. Suggestion: Go to Storage to protect the data. LED Indicator Passive server • Models without ALERT LED: • STATUS: Static orange...
... space on the passive server became read-only Warning A storage space on the front of your device. Resolution Go to the Missing storage space or SSD cache section in this state. Suggestion: Go to Storage to protect the data. LED Indicator Passive server • Models without ALERT LED: • STATUS: Static orange...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... failover is temporarily unavailable: One or more details. The passive server data is degraded. Resolution Refer to the Degraded storage space or SSD cache section in Storage. Description There is repaired, switchover or failover functions will be corrupted. Cause The passive server detected an issue on... on the passive server to Storage Manager > Storage and follow the instructions displayed. 18 Resolution Refer to the Crashed storage space or SSD cache section in this state. This is usually caused by a hard disk error. Suggestion: Replace the failed hard-drive with a new ...
... failover is temporarily unavailable: One or more details. The passive server data is degraded. Resolution Refer to the Degraded storage space or SSD cache section in Storage. Description There is repaired, switchover or failover functions will be corrupted. Cause The passive server detected an issue on... on the passive server to Storage Manager > Storage and follow the instructions displayed. 18 Resolution Refer to the Crashed storage space or SSD cache section in this state. This is usually caused by a hard disk error. Suggestion: Replace the failed hard-drive with a new ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... on the passive server to repair the storage space. Resolution Go to your device. Resolution Refer to the Missing storage space or SSD cache section in this state. Cause The SSD cache was detected on the passive server's storage space. LED Indicator Passive server • Models without ALERT LED: • STATUS: Static orange •...
... on the passive server to repair the storage space. Resolution Go to your device. Resolution Refer to the Missing storage space or SSD cache section in this state. Cause The SSD cache was detected on the passive server's storage space. LED Indicator Passive server • Models without ALERT LED: • STATUS: Static orange •...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...server. 21 for the Peta Volume. 4. If different memory sizes are installed on the host servers, SSD cache may not be unable to function after a switchover due to Synology High Availability > Cluster. 2. Refer to function on the host servers. Make sure that the total ...Peta Volume may be unable to function properly due to operate. 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 function if the servers have the same...
...server. 21 for the Peta Volume. 4. If different memory sizes are installed on the host servers, SSD cache may not be unable to function after a switchover due to Synology High Availability > Cluster. 2. Refer to function on the host servers. Make sure that the total ...Peta Volume may be unable to function properly due to operate. 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 function if the servers have the same...