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Synology C2

Mount a Synology C2 Object Storage bucket as a Windows drive.

Before you begin

You need a C2 Object Storage Access Key ID and Secret Access Key pair, and your bucket's endpoint — https://object.<region>.c2.synology.com (shown in the C2 portal).

Where to get the keys — in the C2 Object Storage portal: open Access Key ID in the left panel, click Create, optionally scope the key to buckets, and copy both values — the secret is shown only once.

Connect

  1. Click Add in the toolbar.
  2. Choose Enterprise → Synology C2.
  3. Enter the endpoint, Access Key ID, and Secret Access Key, then click the Refresh button next to the bucket field.
  4. Select the bucket and click Connect.

Synology C2 connection dialog

Manual bucket entry

If your key is not allowed to list buckets, tick the checkbox to the left of the bucket field and type the bucket name directly.

Settings

Setting Description Default
Endpoint https://object.<region>.c2.synology.com —
Access Key ID / Secret Access Key C2 Object Storage credentials —
Bucket The bucket to mount (list or manual entry) —
Read-only Blocks writes to the mounted drive off

Behavior & limits

  • RaiDrive checks that the endpoint hostname is a C2 object-storage address; other URLs are rejected as "invalid endpoint".
  • S3 semantics: renaming a large folder tree copies and deletes every object under the prefix.

Troubleshooting

Symptom Cause Fix
"invalid endpoint" URL is not the C2 endpoint form Copy the endpoint from the C2 console exactly
Bucket list empty Wrong region endpoint Use the endpoint of the region that holds the bucket