Author: Danilo Chiacchio

Infrastructure Engineer with hands-on experience in virtualization, Linux, Windows Server, and enterprise infrastructure troubleshooting. I work with real-world infrastructure environments and technical labs, focusing on diagnosing problems, understanding root causes, and documenting practical solutions. DPC Virtual Tips was created to share hands-on troubleshooting guides, lab experiences, technical procedures, and lessons learned while working with technologies such as VMware, Linux, HPC/Slurm, networking, storage, and infrastructure automation with Python.

A clean PowerFlex cluster shutdown is a planned storage outage, not simply a matter of powering off the nodes. Before shutdown, stop every workload that uses PowerFlex volumes, confirm that application I/O has ceased, check the system for active rebuild or rebalance work, and inactivate each Protection Domain. Wait for every domain to report Inactive before powering off the hosts. After startup, verify the required PowerFlex components and system health before reactivating the domains and restoring access to applications. This walkthrough is based on a PowerFlex 4.5.2 lab and Dell’s documented clean shutdown and startup workflow. Inactivating a Protection Domain…

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A planned PowerFlex node shutdown or reboot requires more than powering off the server. If the node hosts the Primary MDM, move MDM ownership to an eligible peer first. If it hosts an SDS, place that SDS in the appropriate maintenance mode and wait for the operation to complete before taking the node offline. This walkthrough demonstrates a planned maintenance workflow in PowerFlex Manager: check the MDM cluster, switch ownership when needed, enter the SDS into Protected Maintenance Mode, perform the maintenance, restore the node, and verify cluster health before returning the Primary MDM role. Follow the procedure for the…

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PowerFlex File Services extends Dell PowerFlex beyond block storage by providing file access through protocols such as SMB and NFS. In PowerFlex Manager, the workflow starts with preparing the File Nodes and networks, then creating a NAS Server and a file system before publishing SMB shares or NFS exports. This walkthrough demonstrates the workflow in a nested lab running PowerFlex 4.5.2 with two virtual File Nodes. It covers resource discovery, template preparation, resource-group deployment, NAS Server and file-system creation, and basic SMB and NFS client access. The lab is for learning and is not a production design or a statement…

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PowerFlex Manager can authenticate users against an external directory such as Microsoft Active Directory, while its role mappings determine what those users can do after sign-in. This lets administrators manage account membership in Active Directory and assign PowerFlex Manager permissions to directory groups, instead of creating a separate local account for every user. This walkthrough uses PowerFlex Manager 4.5.2 and Active Directory on Windows Server 2022 in a nested lab. It covers adding the directory service, mapping two Active Directory groups to PowerFlex Manager roles, and testing access with a member of each group. The exact directory names and search…

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The Dell PowerFlex Storage Data Client (SDC) lets a Windows server access block volumes presented by a PowerFlex cluster. This guide covers the manual SDC installation, verifies the connection to the MDM cluster, and shows how to map and prepare a PowerFlex volume for use in Windows Disk Management. The examples come from a nested lab using Windows Server 2022 Standard and PowerFlex 4.5.2. Dell’s support matrix lists Windows Server 2022 for the SDC with PowerFlex 4.5.2, but always confirm the exact SDC package, Windows build, and any matrix footnotes for your deployment before using the procedure in production. Dell…

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This guide walks through expanding an existing Dell PowerFlex block volume and making the additional capacity available to an ext4 filesystem on a Linux Storage Data Client (SDC). The example uses PowerFlex 4.5.2 in a nested lab environment. The volume is already mapped to the Linux SDC and contains a GPT partition with an ext4 filesystem. Resizing happens at three separate layers: increase the PowerFlex volume’s capacity, extend the partition so it can use the added space, and then grow the ext4 filesystem. Increasing the volume alone does not expand the partition or filesystem. This procedure demonstrates a 64 GB…

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