Published: December 6, 2024
Unrecoverable Bad Blocks on Shutdown, Restart, or Upgrade to SFA OS Versions Prior to 12.5.0 (SPT-TSB-0183)
In a certain corner case on versions of SFA OS prior to 12.5.0, the shutdown, restart, or upgrade of an SFA controller may lead to unrecoverable bad blocks. Customers are advised to upgrade to SFA OS 12.5.0 or higher, or to install a fix kit on both controllers in the storage subsystem. Alternative shutdown and restart procedures are also provided in this bulletin. Please contact DDN Support for the fix kit and an upgrade plan.
Published: November 11, 2024
Drive Firmware Update Advisory October 2024 (SPT-TSB-0182)
Drive firmware updates are never merely cosmetic. All drive firmware updates
are designated MANDATORY by DDN Engineering.
Newly qualified firmware updates became available in June through October of 2024 for 42 drive models. If any of these drives are installed in your storage system, please contact DDN Support to obtain the latest firmware and an upgrade plan.
Published: November 11, 2024
Phison NVMe Drive Timeouts May Trigger Auto Write Lock (SPT-TSB-0176 B0)
Updated and re-issued to a wider audience.
SFA systems with Phison NVMe drives can experience long delays in the execution of drive commands. These delays may be long enough to trigger an IOC_CMD_TIMEOUT event. Multiple IOC_CMD_TIMEOUT events in a short period of time will cause the drive to be failed. If two drives in a pool are failed and a third drive in that pool experiences an IOC_CMD_TIMEOUT, SFA OS will place the affected virtual disk (VD) in an auto-write-lock (AWL) state. Once in this AWL state, the VD cannot be written to. New drive firmware resolves this issue. A recovery procedure is provided. (SPT-TSB-0176)
Published: November 11, 2024
Workaround to Monitor Mixed Versions of EXAScaler with 6.3.1 (SPT-TSB-0181)
EXAScaler 6.3.1 and DDN Insight 4.5 have migrated their monitoring technology to Prometheus. As part of this change, the collectd daemon that supports older versions of DDN Insight was removed from EXAScaler 6.3.1. Consequently, if the customer runs multiple versions of EXAScaler across different nodes in the network, DDN Insight is unable to monitor all nodes on the same pain of glass. A workaround is available.
Published: October 2, 2024
SMB Issue with IntelliFlash on H6x00 and N6x00 Appliances (SPT-TSB-0180)
IntelliFlash applications using extended file attributes extensively in an SMB environment may encounter an issue causing a ZFS thread to hog CPU and delay the processing of SMB network packets. The network appears nonresponsive. Please contact DDN Support for a software fix and upgrade plan.
Published: July 29, 2024
EXAScaler NSDS Hotfix Addresses NFS Export Issues (SPT-TSB-0177)
NFS export in NSDS can become unresponsive due to issues with NFS lock reclaim and fails to read Lustre project quotas. These issues are addressed in Hotfix-3 for EXAScaler 6.3.0 NSDS (NFS and Samba Data Services). This fix supersedes all previous versions of NSDS for EXAScaler 6.3.0.
Published: July 11, 2024
Drive Firmware Update Advisory June 2024 (SPT-TSB-0178)
Firmware updates for 19 drives were qualified by DDN Engineering from April to June 2024. Drive firmware updates are never merely cosmetic. Customers are strongly advised to update their drive firmware promptly.
Affected product IDs and firmware versions are listed in the bulletin, along with instructions for how to determine which drives are installed in your DDN storage system. Affected customers should contact DDN Support for updated firmware and an update plan.
Published: May 23, 2024
Unreadable Data on WDC Ultrastar DC SN840 SSDs (SPT-TSB-0171)
If a certain error occurs on Western Digital Ultrastar DC SN840 SSDs running firmware versions prior to R2210401, a watchdog timer will trip and all data on the drive will become permanently unreadable. Contact DDN Support immediately to obtain a firmware update.
Published: May 7, 2024
IntelliFlash SES Firmware Issue May Disrupt Access to Drives (SPT-TSB-0174)
In uncommon circumstances involving heavy workloads, IntelliFlash access to 6, 12, or all 24 NVMe drives may be unexpectedly lost, due to to a SES firmware bug. The fix requires field upgrade of the SES and BMC firmware under DDN Support TSE supervision, as well as upgrade to IntelliFlash OS 3.11.6.2 or later.
See the full text of the TSB for details and data access recovery instructions.
Published: May 7, 2024
Hotfix Addresses Multiple Issues in EXAScaler NSDS 6.3.0 (SPT-TSB-0175)
Hotfix 6.3.0-1 addresses the following issues in EXAScaler NFS and Samba Data Services (NSDS) 6.3.0:
– A clock sync issue prevents automatic NSDS startup after reboot
– The NFS configuration file parser fails to parse duplicate blocks
– The NFS configuration file parser incorrectly quotes IP address prefixes or any
string with a forward slash (“/”)
– Authentication creation fails on passwords that contain a dollar sign (“$”)
See the full text of the TSB for details and installation instructions.