CloudSigma would like to inform you that maintenance completed successfully. Due to the SAS driver issue with some storage nodes, we have performed an upgrade which have upgraded the final storage boxes that were still exposed to this stability issue. The upgrade involved the following steps:
(1) Prepared the upgrade by adding in new storage boxes (pre-maintenance window)
(2) Copied legacy storage boxes data to new storage boxes (pre-maintenance window)
(3) Paused all VMs with drives on DSSD storage (start of maintenance)
(4) Upgraded all storage nodes with the newest stable drivers (during maintenance window)
(5) Bringed VMs back from pause (end of maintenance window)
This prevents data corruption and minimized the downtime, which took about 13 minutes.
All support activities were conducted under the direct supervision of CloudSigma’s operations staff.
IMPACT:
During the maintenance most VMs were paused for a maximum of 13 minutes, but it is anticipated that it will solve the stability issues seen recently. There is no data loss, corruption and/or any other service disruption.
Please accept our sincere apologies for the caused inconveniences.
If you notice any issues please do not hesitate to contact our support department via live chat and or email support@cloudsigma.com
Thank you for your understanding.
We appreciate your patience and welcome any feedback.
Posted Apr 28, 2014 - 11:26 UTC
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Apr 28, 2014 - 11:00 UTC
Scheduled
CloudSigma would like to inform you that due to the SAS driver issue with some storage nodes, we will be performing an upgrade which will upgrade the final storage boxes that are still exposed to this stability issue. In order to minimize service disruption we have decided to upgrade all boxes simultaneously to avoid further stability issue exposure for customers. The upgrade will involve the following steps:
(1) Prepare the upgrade by adding in new storage boxes (pre-maintenance window)
(2) Copy legacy storage boxes data to new storage boxes (pre-maintenance window)
(3) Pause all VMs with drives on DSSD storage (start of maintenance)
(4) Upgrade all storage nodes with the newest stable drivers (during maintenance window)
(5) Bring VMs back from pause (end of maintenance window)
This will prevent data corruption and will minimize the downtime, which will be a maximum of 15-30 minutes.
The SAS driver issue accounts for 100% of storage node outages encountered during the last six months. As such we are prioritising this upgrade to ensure after this Monday there will be no further outages related to this identified issue.
All support activities will be conducted under the direct supervision of CloudSigma’s devops staff.
IMPACT:
During the maintenance some VMs will be paused for a maximum of 15-30 minutes but it is anticipated that it will solve the stability issues seen recently.
Please accept our sincere apologies for the caused inconveniences.
We appreciate your patience and welcome any feedback.