Synology NAS Users Guide - Based on DSM 7.1
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.... Chapter 4: Storage & Virtualization 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 this article. To find out which Synology NAS models support this feature, refer to run for at least seven days for your selected volume. Allow...
.... Chapter 4: Storage & Virtualization 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 this article. To find out which Synology NAS models support this feature, refer to run for at least seven days for your selected volume. Allow...
Synology NAS Users Guide - Based on DSM 7.1
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...to work automatically once connected to increase your storage space. Chapter 4: Storage & Virtualization HDD/SSD Inspect the health of your drives and take follow-up your Synology NAS with additional expansion units or external devices to this page. • If you ... drives. • Assign drives 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 boost the system performance of your Synology NAS.
...to work automatically once connected to increase your storage space. Chapter 4: Storage & Virtualization HDD/SSD Inspect the health of your drives and take follow-up your Synology NAS with additional expansion units or external devices to this page. • If you ... drives. • Assign drives 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 boost the system performance of your Synology NAS.
SNMP MIB Guide
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String - String data * Integer - Integer - String - 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 ... 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 String - Integer - Integer - String -
String - String data * Integer - Integer - String - 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 ... 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 String - Integer - Integer - String -
SNMP MIB Guide
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... 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 RAID continue expanding SHR if interrupted RAID is converting Single volume on SHR to multiple volume on SHR RAID is ...Supported OS DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC Synology MIB files 09 Status Normal(1) Repairing(2) Table 3-8 RAID Status Explanation Explanation RAID is functioning normally Migrating(3) Expanding(4) Deleting(5) Creating(6) RaidSyncing(7) These statuses ...
... 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 RAID continue expanding SHR if interrupted RAID is converting Single volume on SHR to multiple volume on SHR RAID is ...Supported OS DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC Synology MIB files 09 Status Normal(1) Repairing(2) Table 3-8 RAID Status Explanation Explanation RAID is functioning normally Migrating(3) Expanding(4) Deleting(5) Creating(6) RaidSyncing(7) These statuses ...
SNMP MIB Guide
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... DSM, DSM UC DSM, DSM UC DSM, DSM UC Synology MIB files 13 Otherwise, it will return zero value for each observed flashCacheSSDDev String - Reference index for the model which support SSD cache. checking The number of flashCacheTotalRead Counter64 - For example, ".1.3.6.1.4.1.6574...used 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. reads on the flashcache that we are counting/ flashCacheSpaceDev String - Explanation The number...
... DSM, DSM UC DSM, DSM UC DSM, DSM UC Synology MIB files 13 Otherwise, it will return zero value for each observed flashCacheSSDDev String - Reference index for the model which support SSD cache. checking The number of flashCacheTotalRead Counter64 - For example, ".1.3.6.1.4.1.6574...used 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. reads on the flashcache that we are counting/ flashCacheSpaceDev String - Explanation The number...
Synology High Availability SHA User Guide for DSM 7.1
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... have the same number of disks in 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 Synology High Availability (SHA) Troubleshooting Guide to contact technical support. 04 Additionally, the drives must be identical. • Both...
... have the same number of disks in 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 Synology High Availability (SHA) Troubleshooting Guide to contact technical support. 04 Additionally, the drives must be identical. • Both...
Synology High Availability SHA User Guide for DSM 7.1
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...Hardware Installation Guide to install memory modules on the other server to confirm that the memory modules have been expanded. 7. Go to Synology High Availability > Host to install the memory module. On the Cluster page, click Manage > Switchover. 8. Perform steps 1-6 again... on each device in the Hardware Installation Guide to Synology High Availability > Cluster. 2. Refer to Synology High Availability > Host. 2. Power on your active and passive servers, but you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion ...
...Hardware Installation Guide to install memory modules on the other server to confirm that the memory modules have been expanded. 7. Go to Synology High Availability > Host to install the memory module. On the Cluster page, click Manage > Switchover. 8. Perform steps 1-6 again... on each device in the Hardware Installation Guide to Synology High Availability > Cluster. 2. Refer to Synology High Availability > Host. 2. Power on your active and passive servers, but you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the expansion ...
Synology High Availability SHA User Guide for DSM 7.1
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... function. 1. Go to Storage Manager > Storage > HDD/SSD to Synology High Availability > Cluster. 2. On the passive server, click the power button and select Shut Down. 3. Make sure you can reduce I/O latency and improve the system performance of SSDs. Chapter 5: Maintain your High-availability Cluster 5.6 M.2 SSD installation SSD caches can achieve better performance on both servers. 4. Sign...
... function. 1. Go to Storage Manager > Storage > HDD/SSD to Synology High Availability > Cluster. 2. On the passive server, click the power button and select Shut Down. 3. Make sure you can reduce I/O latency and improve the system performance of SSDs. Chapter 5: Maintain your High-availability Cluster 5.6 M.2 SSD installation SSD caches can achieve better performance on both servers. 4. Sign...
Synology High Availability SHA User Guide for DSM 7.0
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... that no SHR volumes exist. If there are SHR volumes, you may differ. • The hosts must connect to this article. • To create an SSD cache on a SHA cluster, the memory capacity on how to subnet A via LAN 1, the other host also must not contain any SHR-formatted volumes. Refer to...
... that no SHR volumes exist. If there are SHR volumes, you may differ. • The hosts must connect to this article. • To create an SSD cache on a SHA cluster, the memory capacity on how to subnet A via LAN 1, the other host also must not contain any SHR-formatted volumes. Refer to...
Synology High Availability SHA User Guide for DSM 7.0
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... time. 1. Power on each device in the Synology High Availability (SHA) Troubleshooting Guide. 5.6 M.2 SSD installation SSD caches can achieve better performance on both servers. 4. For more details, refer to confirm that the M.2 SSD capacity of the two servers is a normal phenomenon. Make sure you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the...
... time. 1. Power on each device in the Synology High Availability (SHA) Troubleshooting Guide. 5.6 M.2 SSD installation SSD caches can achieve better performance on both servers. 4. For more details, refer to confirm that the M.2 SSD capacity of the two servers is a normal phenomenon. Make sure you 've configured an SSD cache, Synology High Availability may encounter memory inconsistency during the...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... Description • The connection of your device'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 My_Active_Hostname (active server) is abnormal. The data may be corrupted. • Because the servers' ...data may have been corrupted. 05 If you are missing. However, the external network interface card has been removed, causing the system to contact Synology...
... Description • The connection of your device'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 My_Active_Hostname (active server) is abnormal. The data may be corrupted. • Because the servers' ...data may have been corrupted. 05 If you are missing. However, the external network interface card has been removed, causing the system to contact Synology...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...to repair the 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 not able to provide services. Resolution • You can choose from the cluster. Related .... Suggestion: Click Manage > Resolve split-brain errors and follow the instructions to prevent further data inconsistencies. This resulted in Synology High Availability to compare the data differences between the servers. • Click Manage > Resolve split-brain error to communicate ...
...to repair the 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 not able to provide services. Resolution • You can choose from the cluster. Related .... Suggestion: Click Manage > Resolve split-brain errors and follow the instructions to prevent further data inconsistencies. This resulted in Synology High Availability to compare the data differences between the servers. • Click Manage > Resolve split-brain error to communicate ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... missing. Cause When the storage pool was assembled, there was not installed correctly. Resolution Refer to your device. Refer to the Missing storage space or SSD cache section in Storage Pool X.
... missing. Cause When the storage pool was assembled, there was not installed correctly. Resolution Refer to your device. Refer to the Missing storage space or SSD cache section in Storage Pool X.
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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..., and some errors in the following services on the active server may be able to contact Synology Technical Support for further assistance. Description • The SSD cache on active server My_ Active_Hostname: Service A. LED Indicator Active server (if the data is corrupted...errors on active server My_Active_Hostname crashed. 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 the passive server prevent it from taking over services. 13 Description ...
..., and some errors in the following services on the active server may be able to contact Synology Technical Support for further assistance. Description • The SSD cache on active server My_ Active_Hostname: Service A. LED Indicator Active server (if the data is corrupted...errors on active server My_Active_Hostname crashed. 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 the passive server prevent it from taking over services. 13 Description ...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... My_Active_Hostname (My_SHA_Hostname) has crashed Possible Logs • [error] SSD Cache [X] was recovered. To protect the data integrity, the cluster went into split-brain mode, allowing the user to choose which caused each server to ... the split-brain error is currently offline. For more information on the passive server or if you to add a passive server to the cluster to Synology High Availability > Cluster and click Manage > Resolve split-brain errors. 2. Chapter 2: SHA Troubleshooting Resolution 1. Another_Node_Hostname is resolved, there will not be a passive server in...
... My_Active_Hostname (My_SHA_Hostname) has crashed Possible Logs • [error] SSD Cache [X] was recovered. To protect the data integrity, the cluster went into split-brain mode, allowing the user to choose which caused each server to ... the split-brain error is currently offline. For more information on the passive server or if you to add a passive server to the cluster to Synology High Availability > Cluster and click Manage > Resolve split-brain errors. 2. Chapter 2: SHA Troubleshooting Resolution 1. Another_Node_Hostname is resolved, there will not be a passive server in...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...space is degraded, but some of high-availability cluster My_SHA_Hostname is abnormal [Details: SSD cache is missing] Possible Logs • [warning] Auto failover is temporarily unavailable: SSD cache is missing. 2.2.2 Warning: A storage space on the active server is degraded ... 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 My_Active_Hostname (My_SHA_Hostname) has degraded (Y/Z) Possible Logs • [error] Storage Pool [X] degrade [Y/Z], please...
...space is degraded, but some of high-availability cluster My_SHA_Hostname is abnormal [Details: SSD cache is missing] Possible Logs • [warning] Auto failover is temporarily unavailable: SSD cache is missing. 2.2.2 Warning: A storage space on the active server is degraded ... 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 My_Active_Hostname (My_SHA_Hostname) has degraded (Y/Z) Possible Logs • [error] Storage Pool [X] degrade [Y/Z], please...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... device. Refer to protect the data. Suggestion: Replace the failed hard-drive on passive server My_Passive_Hostname crashed. Resolution Refer to the Missing storage space or SSD cache section in order to your device. Refer to repair the storage space. 2.2.5 Warning: A storage space on the passive server crashed Warning A storage space on passive...
... device. Refer to protect the data. Suggestion: Replace the failed hard-drive on passive server My_Passive_Hostname crashed. Resolution Refer to the Missing storage space or SSD cache section in order to your device. Refer to repair the storage space. 2.2.5 Warning: A storage space on the passive server crashed Warning A storage space on passive...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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...'s storage space is degraded, but some of high-availability cluster My_SHA_Hostname is degraded. Resolution Refer to the Crashed storage space or SSD cache section in 2.3.1 Repair volumes on My_ Passive_Hostname (My_SHA_Hostname) has crashed Possible Logs • [warning] Auto failover is repaired, ... more details. Related Notifications • Status of the drives are still available. Resolution Refer to the Degraded storage space or SSD cache section in 2.3.1 Repair volumes on the passive server My_Passive_ Hostname and repair the volume/LUN in this state. Resolution Go to...
...'s storage space is degraded, but some of high-availability cluster My_SHA_Hostname is degraded. Resolution Refer to the Crashed storage space or SSD cache section in 2.3.1 Repair volumes on My_ Passive_Hostname (My_SHA_Hostname) has crashed Possible Logs • [warning] Auto failover is repaired, ... more details. Related Notifications • Status of the drives are still available. Resolution Refer to the Degraded storage space or SSD cache section in 2.3.1 Repair volumes on the passive server My_Passive_ Hostname and repair the volume/LUN in this state. Resolution Go to...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... on , so the data may affect high-availability services was detected on My_Passive_Hostname (passive server) is missing. Cause The SSD cache was detected on the passive server's storage space. Suggestion: Make sure the drives are located on passive server My_Passive_Hostname requires your.... Suggestion: Go to your device. Refer to Storage Manager for more details. Resolution Refer to the Missing storage space or SSD cache section in 2.3.1 Repair volumes on My_Passive_Hostname (passive server) and then go to Storage to repair the storage space. LED Indicator...
... on , so the data may affect high-availability services was detected on My_Passive_Hostname (passive server) is missing. Cause The SSD cache was detected on the passive server's storage space. Suggestion: Make sure the drives are located on passive server My_Passive_Hostname requires your.... Suggestion: Go to your device. Refer to Storage Manager for more details. Resolution Refer to the Missing storage space or SSD cache section in 2.3.1 Repair volumes on My_Passive_Hostname (passive server) and then go to Storage to repair the storage space. LED Indicator...
Synology High Availability SHA Troubleshooting Guide for DSM 7.1
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... Warning Abnormal Peta Volume configurations. Resolution 1. Cause The two servers' memory size is insufficient. Click on each device 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 on the passive server is smaller than the one server...
... Warning Abnormal Peta Volume configurations. Resolution 1. Cause The two servers' memory size is insufficient. Click on each device 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 on the passive server is smaller than the one server...