Руководство пользователя Synology NAS
Под управлением DSM 6.2
30 Глава 5: Управление объемом хранения
Изменение типа RAID
Типы RAID существующих пулов ресурсов хранения можно изменить без потери имеющихся данных для
простого и экономичного управления емкостью хранилища. Например, можно создать том RAID 1 на
Synology NAS и позднее изменить его на RAID 5 в случае установки дополнительных жестких дисков.
В разделах ниже приводится основная информация об изменении типов RAID. Для получения
дополнительных инструкций см.
Справку DSM
.
Поддерживаемые типы RAID
Типы RAID можно изменить следующим образом.
Тип RAID
Можно изменить на…
Basic
RAID 1, RAID 5
RAID 1
RAID 5
RAID 1 (Добавить зеркальные диски в RAID 1)
RAID 1 (для повышения избыточности данных)
RAID 5
RAID 6
SHR-1
SHR-2
Требования к жестким дискам
Чтобы изменить тип RAID пула ресурсов хранения, на сервере Synology NAS должно быть установлено
достаточное количество жестких дисков. Ниже перечислено минимальное количество дисков для каждого
типа RAID.
Тип RAID
Минимальное количество жестких дисков
RAID 1
2 или 4
RAID 5
3
RAID 6
4
SHR-2
4 или 5 (в зависимости от структуры диска SHR-1)
Расширение томов и пулов ресурсов хранения
Емкость томов и пулов ресурсов хранения можно постепенно расширить путем установки
дополнительных жестких дисков или жестких дисков большего объема. Благодаря этой функции можно
расширить емкость тома и пула ресурсов хранения в соответствии с бюджетом, и не опасаясь за
возможную потерю данных.
В разделах ниже приводится основная информация касательно расширения томов и пулов ресурсов
хранения. Для получения дополнительных инструкций см.
Справку DSM
.
Расширение раздела
Если том создан в пуле ресурсов хранения с поддержкой нескольких томов (более высокая гибкость), при
наличии достаточного пространства в пуле ресурсов хранения можно сразу же расширить том, изменив
его размер. Если том создан в пуле ресурсов хранения без поддержки нескольких томов, необходимо
сначала расширить соответствующий пул ресурсов хранения. Для получения дополнительных инструкций
см.
Справку DSM
.
Asked
1 year, 2 months ago
Viewed
1k times
I have DS220+ with 1 3TB drive, and basic raid (no data protection).
I want to add another 3TB drive, and change the RAID type to SHR.
On the storage pool action menu I have no «Add Drive» option, When selecting «Change RAID type» my only option is to apply it to the old drive.
So the right way to do it is to change RAID for my storage pool to 1, than add new drive, than change RAID again to SHR?
No faster way to go from basic to SHR?
asked Dec 10, 2021 at 8:51
SHR is meant to be used to save disk-waste if a more common RAID set is chosen when you have multiple HDD with different storage capacity. Ref: https://kb.synology.com/en-my/DSM/tutorial/What_is_Synology_Hybrid_RAID_SHR
If you have 2 identical HDD capacity — then there is no point of doing SHR. You might as well go straight into RAID1 (full redundancy).
Edit: Thanks gronostaj — had not considered that upgrade path.
Edit2: Going through Synology forum and KB — I don’t see any option available. Do try to reach out to Synology support and see what they say. You can contact them from the Synology DSM — and open the «Contact Support» app — under Storage & Virtualisation — Change RAID type / RAID migration — and see how you go.
answered Dec 10, 2021 at 10:43
DariusDarius
5,3282 gold badges28 silver badges24 bronze badges
1
Synology’s official answer:
For two-bay NAS model, if you add one more drive to Basic, it can be
converted to Raid1 only.Please refer to the below article:
https://kb.synology.com/en-global/DSM/help/DSM/StorageManager/storage_pool_change_raid_type?version=7
Only certain RAID types can be changed to other RAID types.
It’s not allowed to change Basic to SHR by adding drive(s).If you still want SHR, the only way is to recreate a new SHR volume by
the new drive directly, then you can move the data from the basic
volume to the new SHR volume. After that, you can remove the basic
storage pool, add the drive into the new SHR storage pool.You will have a SHR storage pool/volume which is assembled with 2
drives, half disk capacity is used for storage capacity, the half
capacity is used for disk redundancy. Therefore, the SHR storage
pool/volume will be about 1 disk capacity size only.This is based on SHR mechanism, please refer to below instruction:
https://kb.synology.com/en-global/DSM/tutorial/What_is_Synology_Hybrid_RAID_SHR
answered Dec 13, 2021 at 14:20
Asked
1 year, 2 months ago
Viewed
1k times
I have DS220+ with 1 3TB drive, and basic raid (no data protection).
I want to add another 3TB drive, and change the RAID type to SHR.
On the storage pool action menu I have no «Add Drive» option, When selecting «Change RAID type» my only option is to apply it to the old drive.
So the right way to do it is to change RAID for my storage pool to 1, than add new drive, than change RAID again to SHR?
No faster way to go from basic to SHR?
asked Dec 10, 2021 at 8:51
SHR is meant to be used to save disk-waste if a more common RAID set is chosen when you have multiple HDD with different storage capacity. Ref: https://kb.synology.com/en-my/DSM/tutorial/What_is_Synology_Hybrid_RAID_SHR
If you have 2 identical HDD capacity — then there is no point of doing SHR. You might as well go straight into RAID1 (full redundancy).
Edit: Thanks gronostaj — had not considered that upgrade path.
Edit2: Going through Synology forum and KB — I don’t see any option available. Do try to reach out to Synology support and see what they say. You can contact them from the Synology DSM — and open the «Contact Support» app — under Storage & Virtualisation — Change RAID type / RAID migration — and see how you go.
answered Dec 10, 2021 at 10:43
DariusDarius
5,3282 gold badges28 silver badges24 bronze badges
1
Synology’s official answer:
For two-bay NAS model, if you add one more drive to Basic, it can be
converted to Raid1 only.Please refer to the below article:
https://kb.synology.com/en-global/DSM/help/DSM/StorageManager/storage_pool_change_raid_type?version=7
Only certain RAID types can be changed to other RAID types.
It’s not allowed to change Basic to SHR by adding drive(s).If you still want SHR, the only way is to recreate a new SHR volume by
the new drive directly, then you can move the data from the basic
volume to the new SHR volume. After that, you can remove the basic
storage pool, add the drive into the new SHR storage pool.You will have a SHR storage pool/volume which is assembled with 2
drives, half disk capacity is used for storage capacity, the half
capacity is used for disk redundancy. Therefore, the SHR storage
pool/volume will be about 1 disk capacity size only.This is based on SHR mechanism, please refer to below instruction:
https://kb.synology.com/en-global/DSM/tutorial/What_is_Synology_Hybrid_RAID_SHR
answered Dec 13, 2021 at 14:20